{"id":1902,"date":"2026-07-29T03:36:15","date_gmt":"2026-07-29T03:36:15","guid":{"rendered":"https:\/\/viettelvtt.com\/?p=1902"},"modified":"2026-07-29T04:22:53","modified_gmt":"2026-07-29T04:22:53","slug":"internet-viettel-khong-co-mang","status":"publish","type":"post","link":"https:\/\/viettelvtt.com\/internet-viettel-khong-co-mang\/","title":{"rendered":"Internet Viettel Kh\u00f4ng C\u00f3 M\u1ea1ng? Ki\u1ec3m Tra Theo 7 B\u01b0\u1edbc"},"content":{"rendered":"<p><span style=\"font-family: 'times new roman', times, serif;\">T\u00ecnh tr\u1ea1ng <strong><a href=\"https:\/\/viettelvtt.com\/loi-internet-viettel\/\">Internet Viettel kh\u00f4ng c\u00f3 m\u1ea1ng<\/a><\/strong> c\u00f3 th\u1ec3 x\u1ea3y ra \u0111\u1ed9t ng\u1ed9t trong khi \u0111ang h\u1ecdc t\u1eadp, l\u00e0m vi\u1ec7c, xem truy\u1ec1n h\u00ecnh ho\u1eb7c s\u1eed d\u1ee5ng c\u00e1c thi\u1ebft b\u1ecb th\u00f4ng minh. \u0110i\u1ec7n tho\u1ea1i c\u00f3 th\u1ec3 v\u1eabn hi\u1ec3n th\u1ecb bi\u1ec3u t\u01b0\u1ee3ng WiFi, modem v\u1eabn s\u00e1ng \u0111\u00e8n nh\u01b0ng website v\u00e0 \u1ee9ng d\u1ee5ng \u0111\u1ec1u kh\u00f4ng t\u1ea3i \u0111\u01b0\u1ee3c. Trong tr\u01b0\u1eddng h\u1ee3p kh\u00e1c, t\u00ean WiFi bi\u1ebfn m\u1ea5t ho\u00e0n to\u00e0n ho\u1eb7c to\u00e0n b\u1ed9 thi\u1ebft b\u1ecb trong nh\u00e0 c\u00f9ng m\u1ea5t k\u1ebft n\u1ed1i.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Kh\u00f4ng ph\u1ea3i tr\u01b0\u1eddng h\u1ee3p n\u00e0o c\u0169ng c\u1ea7n g\u1ecdi k\u1ef9 thu\u1eadt vi\u00ean ngay. M\u1ed9t s\u1ed1 l\u1ed7i \u0111\u01a1n gi\u1ea3n xu\u1ea5t ph\u00e1t t\u1eeb ngu\u1ed3n \u0111i\u1ec7n, d\u00e2y LAN b\u1ecb l\u1ecfng, modem ho\u1ea1t \u0111\u1ed9ng qu\u00e1 l\u00e2u ho\u1eb7c \u0111i\u1ec7n tho\u1ea1i nh\u1eadn sai \u0111\u1ecba ch\u1ec9 IP. Ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 t\u1ef1 ki\u1ec3m tra v\u00e0 kh\u1eafc ph\u1ee5c trong v\u00e0i ph\u00fat n\u1ebfu th\u1ef1c hi\u1ec7n \u0111\u00fang tr\u00ecnh t\u1ef1.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Ng\u01b0\u1ee3c l\u1ea1i, khi modem b\u00e1o \u0111\u00e8n LOS \u0111\u1ecf, \u0111\u00e8n PON kh\u00f4ng s\u00e1ng, d\u00e2y c\u00e1p quang b\u1ecb \u0111\u1ee9t ho\u1eb7c to\u00e0n b\u1ed9 thi\u1ebft b\u1ecb m\u1ea5t m\u1ea1ng k\u00e9o d\u00e0i, vi\u1ec7c kh\u1edfi \u0111\u1ed9ng l\u1ea1i nhi\u1ec1u l\u1ea7n th\u01b0\u1eddng kh\u00f4ng gi\u1ea3i quy\u1ebft \u0111\u01b0\u1ee3c v\u1ea5n \u0111\u1ec1. Khi \u0111\u00f3, ng\u01b0\u1eddi d\u00f9ng n\u00ean b\u00e1o h\u1ecfng \u0111\u1ec3 k\u1ef9 thu\u1eadt vi\u00ean Viettel ki\u1ec3m tra t\u00edn hi\u1ec7u v\u00e0 \u0111\u01b0\u1eddng d\u00e2y.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">B\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y h\u01b0\u1edbng d\u1eabn c\u00e1ch ki\u1ec3m tra Internet Viettel m\u1ea5t k\u1ebft n\u1ed1i theo 7 b\u01b0\u1edbc, b\u1eaft \u0111\u1ea7u t\u1eeb nh\u1eefng thao t\u00e1c \u0111\u01a1n gi\u1ea3n tr\u00ean \u0111i\u1ec7n tho\u1ea1i \u0111\u1ebfn vi\u1ec7c quan s\u00e1t modem, ki\u1ec3m tra \u0111\u01b0\u1eddng truy\u1ec1n v\u00e0 g\u1eedi y\u00eau c\u1ea7u h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt.<\/span><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Mu\u0323c Lu\u0323c<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/viettelvtt.com\/internet-viettel-khong-co-mang\/#Internet_Viettel_khong_co_mang_la_tinh_trang_gi\" >Internet Viettel kh\u00f4ng c\u00f3 m\u1ea1ng l\u00e0 t\u00ecnh tr\u1ea1ng g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/viettelvtt.com\/internet-viettel-khong-co-mang\/#Vi_sao_Internet_Viettel_khong_co_mang\" >V\u00ec sao Internet Viettel kh\u00f4ng c\u00f3 m\u1ea1ng?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/viettelvtt.com\/internet-viettel-khong-co-mang\/#Bang_chan_doan_nhanh_khi_WiFi_Viettel_mat_mang\" >B\u1ea3ng ch\u1ea9n \u0111o\u00e1n nhanh khi WiFi Viettel m\u1ea5t m\u1ea1ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/viettelvtt.com\/internet-viettel-khong-co-mang\/#Cach_kiem_tra_Internet_Viettel_khong_co_mang_theo_7_buoc\" >C\u00e1ch ki\u1ec3m tra Internet Viettel kh\u00f4ng c\u00f3 m\u1ea1ng theo 7 b\u01b0\u1edbc<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/viettelvtt.com\/internet-viettel-khong-co-mang\/#Cach_khac_phuc_theo_tung_tinh_trang_mat_Internet_Viettel\" >C\u00e1ch kh\u1eafc ph\u1ee5c theo t\u1eebng t\u00ecnh tr\u1ea1ng m\u1ea5t Internet Viettel<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/viettelvtt.com\/internet-viettel-khong-co-mang\/#Khi_nao_co_the_tu_xu_ly_va_khi_nao_can_goi_ky_thuat\" >Khi n\u00e0o c\u00f3 th\u1ec3 t\u1ef1 x\u1eed l\u00fd v\u00e0 khi n\u00e0o c\u1ea7n g\u1ecdi k\u1ef9 thu\u1eadt?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/viettelvtt.com\/internet-viettel-khong-co-mang\/#Cach_bao_hong_Internet_Viettel_nhanh_chong\" >C\u00e1ch b\u00e1o h\u1ecfng Internet Viettel nhanh ch\u00f3ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/viettelvtt.com\/internet-viettel-khong-co-mang\/#Cau_hoi_thuong_gap_ve_Internet_Viettel_khong_co_mang\" >C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 Internet Viettel kh\u00f4ng c\u00f3 m\u1ea1ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/viettelvtt.com\/internet-viettel-khong-co-mang\/#Ket_luan\" >K\u1ebft lu\u1eadn<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Internet_Viettel_khong_co_mang_la_tinh_trang_gi\"><\/span><span style=\"color: #ed1c24;\"><strong><span style=\"font-family: 'times new roman', times, serif;\">Internet Viettel kh\u00f4ng c\u00f3 m\u1ea1ng l\u00e0 t\u00ecnh tr\u1ea1ng g\u00ec?<\/span><\/strong><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<figure id=\"attachment_1905\" aria-describedby=\"caption-attachment-1905\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-1905 size-full\" title=\"Internet Viettel kh\u00f4ng c\u00f3 m\u1ea1ng\" src=\"http:\/\/viettelvtt.com\/wp-content\/uploads\/2026\/07\/internet-viettel-khong-co-mang-1.jpg\" alt=\"Internet Viettel kh\u00f4ng c\u00f3 m\u1ea1ng\" width=\"800\" height=\"600\" srcset=\"http:\/\/viettelvtt.com\/wp-content\/uploads\/2026\/07\/internet-viettel-khong-co-mang-1.jpg 800w, http:\/\/viettelvtt.com\/wp-content\/uploads\/2026\/07\/internet-viettel-khong-co-mang-1-533x400.jpg 533w, http:\/\/viettelvtt.com\/wp-content\/uploads\/2026\/07\/internet-viettel-khong-co-mang-1-768x576.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-1905\" class=\"wp-caption-text\">Internet Viettel kh\u00f4ng c\u00f3 m\u1ea1ng<\/figcaption><\/figure>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Internet Viettel kh\u00f4ng c\u00f3 m\u1ea1ng l\u00e0 t\u00ecnh tr\u1ea1ng \u0111i\u1ec7n tho\u1ea1i, m\u00e1y t\u00ednh, tivi ho\u1eb7c thi\u1ebft b\u1ecb th\u00f4ng minh kh\u00f4ng th\u1ec3 truy c\u1eadp c\u00e1c d\u1ecbch v\u1ee5 tr\u1ef1c tuy\u1ebfn th\u00f4ng qua \u0111\u01b0\u1eddng truy\u1ec1n Internet Viettel.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">S\u1ef1 c\u1ed1 c\u00f3 th\u1ec3 x\u1ea3y ra tr\u00ean m\u1ed9t thi\u1ebft b\u1ecb, m\u1ed9t khu v\u1ef1c trong nh\u00e0 ho\u1eb7c to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng m\u1ea1ng. V\u00ec v\u1eady, tr\u01b0\u1edbc khi x\u1eed l\u00fd, ng\u01b0\u1eddi d\u00f9ng c\u1ea7n ph\u00e2n bi\u1ec7t r\u00f5 m\u1ea5t Internet v\u1edbi m\u1ea5t WiFi.<\/span><\/p>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">M\u1ea5t Internet kh\u00e1c m\u1ea5t WiFi nh\u01b0 th\u1ebf n\u00e0o?<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">M\u1ea5t WiFi x\u1ea3y ra khi \u0111i\u1ec7n tho\u1ea1i ho\u1eb7c m\u00e1y t\u00ednh kh\u00f4ng nh\u00ecn th\u1ea5y t\u00ean m\u1ea1ng, kh\u00f4ng th\u1ec3 k\u1ebft n\u1ed1i v\u1edbi modem ho\u1eb7c li\u00ean t\u1ee5c b\u1ecb ng\u1eaft kh\u1ecfi m\u1ea1ng kh\u00f4ng d\u00e2y. Nguy\u00ean nh\u00e2n th\u01b0\u1eddng li\u00ean quan \u0111\u1ebfn ch\u1ee9c n\u0103ng ph\u00e1t WiFi, kho\u1ea3ng c\u00e1ch, v\u1eadt c\u1ea3n ho\u1eb7c thi\u1ebft b\u1ecb ng\u01b0\u1eddi d\u00f9ng.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">M\u1ea5t Internet l\u00e0 t\u00ecnh tr\u1ea1ng thi\u1ebft b\u1ecb \u0111\u00e3 k\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c v\u1edbi WiFi nh\u01b0ng kh\u00f4ng th\u1ec3 m\u1edf website, xem video ho\u1eb7c s\u1eed d\u1ee5ng \u1ee9ng d\u1ee5ng tr\u1ef1c tuy\u1ebfn. \u0110i\u1ec7n tho\u1ea1i v\u1eabn c\u00f3 th\u1ec3 hi\u1ec3n th\u1ecb \u0111\u1ea7y \u0111\u1ee7 bi\u1ec3u t\u01b0\u1ee3ng WiFi nh\u01b0ng k\u00e8m th\u00f4ng b\u00e1o \u201cKh\u00f4ng c\u00f3 Internet\u201d.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">M\u1ed9t modem c\u00f3 th\u1ec3 v\u1eabn ph\u00e1t WiFi ngay c\u1ea3 khi \u0111\u01b0\u1eddng truy\u1ec1n c\u00e1p quang \u0111\u00e3 m\u1ea5t t\u00edn hi\u1ec7u. V\u00ec v\u1eady, vi\u1ec7c \u0111i\u1ec7n tho\u1ea1i nh\u00ecn th\u1ea5y t\u00ean WiFi kh\u00f4ng \u0111\u1ed3ng ngh\u0129a k\u1ebft n\u1ed1i Internet \u0111ang ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng.<\/span><\/p>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">Modem c\u00f3 \u0111\u00e8n nh\u01b0ng kh\u00f4ng c\u00f3 m\u1ea1ng l\u00e0 v\u00ec sao?<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Tr\u00ean modem Viettel c\u00f3 nhi\u1ec1u \u0111\u00e8n kh\u00e1c nhau. \u0110\u00e8n ngu\u1ed3n ho\u1eb7c \u0111\u00e8n WiFi s\u00e1ng ch\u1ec9 cho bi\u1ebft thi\u1ebft b\u1ecb \u0111ang \u0111\u01b0\u1ee3c c\u1ea5p \u0111i\u1ec7n v\u00e0 ch\u1ee9c n\u0103ng ph\u00e1t s\u00f3ng kh\u00f4ng d\u00e2y \u0111ang ho\u1ea1t \u0111\u1ed9ng. Ng\u01b0\u1eddi d\u00f9ng c\u1ea7n quan s\u00e1t th\u00eam \u0111\u00e8n PON, LOS v\u00e0 Internet \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 t\u00edn hi\u1ec7u \u0111\u01b0\u1eddng truy\u1ec1n.<\/span><\/p>\n<table dir=\"ltr\" style=\"width: 44.2582%;\" border=\"1\" cellspacing=\"0\" cellpadding=\"0\" data-sheets-root=\"1\" data-sheets-baot=\"1\">\n<colgroup>\n<col width=\"179\" \/>\n<col width=\"209\" \/>\n<col width=\"304\" \/><\/colgroup>\n<tbody>\n<tr>\n<td style=\"width: 25.7642%;\"><span style=\"font-family: 'times new roman', times, serif;\">\u0110\u00e8n modem<\/span><\/td>\n<td style=\"width: 30.131%;\"><span style=\"font-family: 'times new roman', times, serif;\">Tr\u1ea1ng th\u00e1i tham kh\u1ea3o<\/span><\/td>\n<td style=\"width: 63.6198%;\"><span style=\"font-family: 'times new roman', times, serif;\">\u00dd ngh\u0129a<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 25.7642%;\"><span style=\"font-family: 'times new roman', times, serif;\">Power<\/span><\/td>\n<td style=\"width: 30.131%;\"><span style=\"font-family: 'times new roman', times, serif;\">S\u00e1ng \u1ed5n \u0111\u1ecbnh<\/span><\/td>\n<td style=\"width: 63.6198%;\"><span style=\"font-family: 'times new roman', times, serif;\">Modem \u0111ang \u0111\u01b0\u1ee3c c\u1ea5p ngu\u1ed3n<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 25.7642%;\"><span style=\"font-family: 'times new roman', times, serif;\">PON<\/span><\/td>\n<td style=\"width: 30.131%;\"><span style=\"font-family: 'times new roman', times, serif;\">S\u00e1ng xanh \u1ed5n \u0111\u1ecbnh<\/span><\/td>\n<td style=\"width: 63.6198%;\"><span style=\"font-family: 'times new roman', times, serif;\">Modem \u0111\u00e3 nh\u1eadn t\u00edn hi\u1ec7u quang<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 25.7642%;\"><span style=\"font-family: 'times new roman', times, serif;\">LOS<\/span><\/td>\n<td style=\"width: 30.131%;\"><span style=\"font-family: 'times new roman', times, serif;\">T\u1eaft<\/span><\/td>\n<td style=\"width: 63.6198%;\"><span style=\"font-family: 'times new roman', times, serif;\">Tr\u1ea1ng th\u00e1i th\u01b0\u1eddng g\u1eb7p khi t\u00edn hi\u1ec7u quang b\u00ecnh th\u01b0\u1eddng<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 25.7642%;\"><span style=\"font-family: 'times new roman', times, serif;\">LOS<\/span><\/td>\n<td style=\"width: 30.131%;\"><span style=\"font-family: 'times new roman', times, serif;\">\u0110\u1ecf ho\u1eb7c nh\u1ea5p nh\u00e1y \u0111\u1ecf<\/span><\/td>\n<td style=\"width: 63.6198%;\"><span style=\"font-family: 'times new roman', times, serif;\">Modem c\u00f3 th\u1ec3 \u0111ang m\u1ea5t t\u00edn hi\u1ec7u quang<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 25.7642%;\"><span style=\"font-family: 'times new roman', times, serif;\">Internet<\/span><\/td>\n<td style=\"width: 30.131%;\"><span style=\"font-family: 'times new roman', times, serif;\">S\u00e1ng ho\u1eb7c nh\u1ea5p nh\u00e1y<\/span><\/td>\n<td style=\"width: 63.6198%;\"><span style=\"font-family: 'times new roman', times, serif;\">K\u1ebft n\u1ed1i Internet v\u00e0 d\u1eef li\u1ec7u \u0111ang ho\u1ea1t \u0111\u1ed9ng<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 25.7642%;\"><span style=\"font-family: 'times new roman', times, serif;\">WLAN\/WiFi<\/span><\/td>\n<td style=\"width: 30.131%;\"><span style=\"font-family: 'times new roman', times, serif;\">S\u00e1ng<\/span><\/td>\n<td style=\"width: 63.6198%;\"><span style=\"font-family: 'times new roman', times, serif;\">Ch\u1ee9c n\u0103ng ph\u00e1t WiFi \u0111ang b\u1eadt<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 25.7642%;\"><span style=\"font-family: 'times new roman', times, serif;\">LAN<\/span><\/td>\n<td style=\"width: 30.131%;\"><span style=\"font-family: 'times new roman', times, serif;\">S\u00e1ng ho\u1eb7c nh\u1ea5p nh\u00e1y<\/span><\/td>\n<td style=\"width: 63.6198%;\"><span style=\"font-family: 'times new roman', times, serif;\">C\u00f3 thi\u1ebft b\u1ecb k\u1ebft n\u1ed1i qua d\u00e2y m\u1ea1ng<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-family: 'times new roman', times, serif;\">T\u00ean v\u00e0 c\u00e1ch hi\u1ec3n th\u1ecb \u0111\u00e8n c\u00f3 th\u1ec3 kh\u00e1c nhau gi\u1eefa c\u00e1c m\u1eabu modem. Tuy nhi\u00ean, \u0111\u00e8n LOS \u0111\u1ecf th\u01b0\u1eddng l\u00e0 d\u1ea5u hi\u1ec7u quan tr\u1ecdng c\u1ea7n ki\u1ec3m tra \u0111\u01b0\u1eddng d\u00e2y c\u00e1p quang thay v\u00ec ch\u1ec9 x\u1eed l\u00fd tr\u00ean \u0111i\u1ec7n tho\u1ea1i.<\/span><\/p>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">V\u00ec sao ch\u1ec9 m\u1ed9t thi\u1ebft b\u1ecb kh\u00f4ng v\u00e0o \u0111\u01b0\u1ee3c m\u1ea1ng?<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">N\u1ebfu m\u00e1y t\u00ednh v\u00e0 tivi v\u1eabn s\u1eed d\u1ee5ng Internet b\u00ecnh th\u01b0\u1eddng nh\u01b0ng m\u1ed9t \u0111i\u1ec7n tho\u1ea1i kh\u00f4ng truy c\u1eadp \u0111\u01b0\u1ee3c, kh\u1ea3 n\u0103ng cao \u0111\u01b0\u1eddng truy\u1ec1n Viettel ch\u01b0a g\u1eb7p s\u1ef1 c\u1ed1.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Nguy\u00ean nh\u00e2n c\u00f3 th\u1ec3 l\u00e0 \u0111i\u1ec7n tho\u1ea1i l\u01b0u sai m\u1eadt kh\u1ea9u, nh\u1eadn \u0111\u1ecba ch\u1ec9 IP kh\u00f4ng \u0111\u00fang, \u0111ang b\u1eadt VPN, d\u00f9ng DNS th\u1ee7 c\u00f4ng ho\u1eb7c g\u1eb7p l\u1ed7i h\u1ec7 \u0111i\u1ec1u h\u00e0nh. Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, ng\u01b0\u1eddi d\u00f9ng n\u00ean x\u1eed l\u00fd tr\u00ean \u0111i\u1ec7n tho\u1ea1i tr\u01b0\u1edbc, kh\u00f4ng n\u00ean reset to\u00e0n b\u1ed9 modem.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">N\u1ebfu t\u1ea5t c\u1ea3 thi\u1ebft b\u1ecb c\u00f9ng m\u1ea5t k\u1ebft n\u1ed1i, c\u1ea7n chuy\u1ec3n sang ki\u1ec3m tra ngu\u1ed3n \u0111i\u1ec7n, modem v\u00e0 \u0111\u01b0\u1eddng truy\u1ec1n c\u00e1p quang.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Vi_sao_Internet_Viettel_khong_co_mang\"><\/span><strong><span style=\"font-family: 'times new roman', times, serif; color: #ed1c24;\">V\u00ec sao Internet Viettel kh\u00f4ng c\u00f3 m\u1ea1ng?<\/span><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<figure id=\"attachment_1906\" aria-describedby=\"caption-attachment-1906\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-1906 size-full\" title=\"Nguy\u00ean nh\u00e2n Internet Viettel kh\u00f4ng c\u00f3 m\u1ea1ng\" src=\"http:\/\/viettelvtt.com\/wp-content\/uploads\/2026\/07\/internet-viettel-khong-co-mang-2.jpg\" alt=\"Nguy\u00ean nh\u00e2n Internet Viettel kh\u00f4ng c\u00f3 m\u1ea1ng\" width=\"800\" height=\"600\" srcset=\"http:\/\/viettelvtt.com\/wp-content\/uploads\/2026\/07\/internet-viettel-khong-co-mang-2.jpg 800w, http:\/\/viettelvtt.com\/wp-content\/uploads\/2026\/07\/internet-viettel-khong-co-mang-2-533x400.jpg 533w, http:\/\/viettelvtt.com\/wp-content\/uploads\/2026\/07\/internet-viettel-khong-co-mang-2-768x576.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-1906\" class=\"wp-caption-text\">Nguy\u00ean nh\u00e2n Internet Viettel kh\u00f4ng c\u00f3 m\u1ea1ng<\/figcaption><\/figure>\n<p><span style=\"font-family: 'times new roman', times, serif;\">T\u00ecnh tr\u1ea1ng WiFi Viettel m\u1ea5t m\u1ea1ng c\u00f3 th\u1ec3 b\u1eaft ngu\u1ed3n t\u1eeb \u0111\u01b0\u1eddng c\u00e1p quang, modem, ngu\u1ed3n \u0111i\u1ec7n, d\u00e2y k\u1ebft n\u1ed1i ho\u1eb7c ch\u00ednh thi\u1ebft b\u1ecb \u0111ang s\u1eed d\u1ee5ng. Vi\u1ec7c x\u00e1c \u0111\u1ecbnh \u0111\u00fang nguy\u00ean nh\u00e2n gi\u00fap tr\u00e1nh nh\u1eefng thao t\u00e1c kh\u00f4ng c\u1ea7n thi\u1ebft nh\u01b0 reset modem ho\u1eb7c thay \u0111\u1ed5i c\u1ea5u h\u00ecnh n\u00e2ng cao.<\/span><\/p>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">Modem ho\u1ea1t \u0111\u1ed9ng qu\u00e1 l\u00e2u<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Modem th\u01b0\u1eddng \u0111\u01b0\u1ee3c b\u1eadt li\u00ean t\u1ee5c \u0111\u1ec3 duy tr\u00ec k\u1ebft n\u1ed1i cho \u0111i\u1ec7n tho\u1ea1i, camera, tivi v\u00e0 c\u00e1c thi\u1ebft b\u1ecb kh\u00e1c. Sau th\u1eddi gian d\u00e0i ho\u1ea1t \u0111\u1ed9ng, thi\u1ebft b\u1ecb c\u00f3 th\u1ec3 n\u00f3ng ho\u1eb7c g\u1eb7p l\u1ed7i t\u1ea1m th\u1eddi trong qu\u00e1 tr\u00ecnh c\u1ea5p ph\u00e1t \u0111\u1ecba ch\u1ec9 IP.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Viettel h\u01b0\u1edbng d\u1eabn ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 kh\u1edfi \u0111\u1ed9ng l\u1ea1i modem b\u1eb1ng n\u00fat ON\/OFF, ch\u1edd kho\u1ea3ng 2\u20133 ph\u00fat r\u1ed3i b\u1eadt l\u1ea1i. Viettel c\u0169ng l\u01b0u \u00fd kh\u00f4ng nh\u1ea7m n\u00fat ngu\u1ed3n v\u1edbi n\u00fat Reset v\u00ec vi\u1ec7c reset c\u00f3 th\u1ec3 y\u00eau c\u1ea7u c\u1ea5u h\u00ecnh l\u1ea1i thi\u1ebft b\u1ecb.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">D\u1ea5u hi\u1ec7u th\u01b0\u1eddng g\u1eb7p l\u00e0 modem v\u1eabn s\u00e1ng, t\u00ean WiFi v\u1eabn xu\u1ea5t hi\u1ec7n nh\u01b0ng thi\u1ebft b\u1ecb kh\u00f4ng v\u00e0o \u0111\u01b0\u1ee3c m\u1ea1ng. Sau khi kh\u1edfi \u0111\u1ed9ng l\u1ea1i \u0111\u00fang c\u00e1ch, k\u1ebft n\u1ed1i c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng tr\u1edf l\u1ea1i.<\/span><\/p>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">D\u00e2y ngu\u1ed3n ho\u1eb7c \u1ed5 \u0111i\u1ec7n b\u1ecb l\u1ecfng<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">\u1ed4 c\u1eafm \u0111i\u1ec7n kh\u00f4ng ch\u1eafc ch\u1eafn, d\u00e2y ngu\u1ed3n b\u1ecb g\u00e3y ng\u1ea7m ho\u1eb7c b\u1ed9 chuy\u1ec3n ngu\u1ed3n ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng \u1ed5n \u0111\u1ecbnh c\u00f3 th\u1ec3 khi\u1ebfn modem t\u1eaft, t\u1ef1 kh\u1edfi \u0111\u1ed9ng ho\u1eb7c m\u1ea5t k\u1ebft n\u1ed1i ng\u1eabu nhi\u00ean.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Ng\u01b0\u1eddi d\u00f9ng n\u00ean quan s\u00e1t \u0111\u00e8n Power. N\u1ebfu \u0111\u00e8n t\u1eaft ho\u1eb7c li\u00ean t\u1ee5c ch\u1edbp t\u1eaft, h\u00e3y ki\u1ec3m tra \u1ed5 \u0111i\u1ec7n, d\u00e2y ngu\u1ed3n v\u00e0 n\u00fat ngu\u1ed3n tr\u00ean modem.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Kh\u00f4ng n\u00ean t\u1ef1 s\u1eed d\u1ee5ng b\u1ed9 ngu\u1ed3n kh\u00e1c ch\u1ec9 v\u00ec c\u00f3 \u0111\u1ea7u c\u1eafm t\u01b0\u01a1ng t\u1ef1. \u0110i\u1ec7n \u00e1p ho\u1eb7c th\u00f4ng s\u1ed1 kh\u00f4ng ph\u00f9 h\u1ee3p c\u00f3 th\u1ec3 l\u00e0m thi\u1ebft b\u1ecb ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng \u1ed5n \u0111\u1ecbnh.<\/span><\/p>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">\u0110\u01b0\u1eddng c\u00e1p quang b\u1ecb \u0111\u1ee9t ho\u1eb7c suy hao<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">D\u00e2y c\u00e1p quang c\u00f3 th\u1ec3 b\u1ecb \u0111\u1ee9t, k\u00e9o c\u0103ng, k\u1eb9p v\u00e0o c\u1eeda, g\u1eadp qu\u00e1 m\u1ee9c ho\u1eb7c b\u1ecb \u1ea3nh h\u01b0\u1edfng trong qu\u00e1 tr\u00ecnh s\u1eeda ch\u1eefa nh\u00e0 c\u1eeda. Tuy\u1ebfn d\u00e2y b\u00ean ngo\u00e0i c\u0169ng c\u00f3 th\u1ec3 g\u1eb7p v\u1ea5n \u0111\u1ec1 sau m\u01b0a l\u1edbn, thi c\u00f4ng ho\u1eb7c va ch\u1ea1m.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Viettel li\u1ec7t k\u00ea \u0111\u1ee9t c\u00e1p quang, l\u1ed7i modem v\u00e0 l\u1ed7i tr\u00ean thi\u1ebft b\u1ecb nh\u1eadn WiFi l\u00e0 nh\u1eefng nh\u00f3m nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn khi\u1ebfn WiFi c\u00f3 s\u00f3ng nh\u01b0ng kh\u00f4ng c\u00f3 Internet.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Khi modem m\u1ea5t t\u00edn hi\u1ec7u quang, \u0111\u00e8n LOS th\u01b0\u1eddng chuy\u1ec3n \u0111\u1ecf ho\u1eb7c nh\u1ea5p nh\u00e1y, trong khi \u0111\u00e8n PON kh\u00f4ng s\u00e1ng nh\u01b0 b\u00ecnh th\u01b0\u1eddng. Ng\u01b0\u1eddi d\u00f9ng ch\u1ec9 n\u00ean quan s\u00e1t d\u00e2y b\u1eb1ng m\u1eaft th\u01b0\u1eddng, kh\u00f4ng n\u00ean t\u1ef1 th\u00e1o \u0111\u1ea7u n\u1ed1i ho\u1eb7c c\u1eaft n\u1ed1i c\u00e1p quang.<\/span><\/p>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">D\u00e2y LAN ho\u1eb7c \u0111\u1ea7u c\u1eafm b\u1ecb l\u1ed7i<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">N\u1ebfu \u0111i\u1ec7n tho\u1ea1i d\u00f9ng WiFi b\u00ecnh th\u01b0\u1eddng nh\u01b0ng m\u00e1y t\u00ednh k\u1ebft n\u1ed1i b\u1eb1ng d\u00e2y kh\u00f4ng c\u00f3 m\u1ea1ng, nguy\u00ean nh\u00e2n c\u00f3 th\u1ec3 n\u1eb1m \u1edf d\u00e2y LAN, \u0111\u1ea7u c\u1eafm ho\u1eb7c c\u1ed5ng m\u1ea1ng.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">D\u00e2y b\u1ecb g\u00e3y ng\u1ea7m ho\u1eb7c \u0111\u1ea7u c\u1eafm l\u1ecfng c\u00f3 th\u1ec3 khi\u1ebfn k\u1ebft n\u1ed1i l\u00fac nh\u1eadn, l\u00fac m\u1ea5t. Ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 r\u00fat v\u00e0 c\u1eafm l\u1ea1i d\u00e2y, chuy\u1ec3n sang c\u1ed5ng LAN kh\u00e1c ho\u1eb7c th\u1eed m\u1ed9t d\u00e2y m\u1ea1ng kh\u00e1c.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Viettel c\u0169ng khuy\u1ebfn ngh\u1ecb ki\u1ec3m tra d\u00e2y LAN, c\u00e1p quang, jack c\u1eafm v\u00e0 th\u1eed k\u1ebft n\u1ed1i tr\u1ef1c ti\u1ebfp b\u1eb1ng m\u00e1y t\u00ednh khi x\u1eed l\u00fd s\u1ef1 c\u1ed1 modem ho\u1eb7c router.<\/span><\/p>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">\u0110i\u1ec7n tho\u1ea1i ho\u1eb7c m\u00e1y t\u00ednh b\u1ecb l\u1ed7i c\u1ea5u h\u00ecnh<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Khi ch\u1ec9 m\u1ed9t thi\u1ebft b\u1ecb kh\u00f4ng v\u00e0o \u0111\u01b0\u1ee3c m\u1ea1ng, nguy\u00ean nh\u00e2n c\u00f3 th\u1ec3 li\u00ean quan \u0111\u1ebfn \u0111\u1ecba ch\u1ec9 IP, DNS, VPN, proxy ho\u1eb7c th\u00f4ng tin m\u1ea1ng WiFi \u0111\u00e3 l\u01b0u.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">L\u1ed7i xung \u0111\u1ed9t IP v\u00e0 sai c\u1ea5u h\u00ecnh thi\u1ebft b\u1ecb l\u00e0 nh\u1eefng nguy\u00ean nh\u00e2n c\u00f3 th\u1ec3 l\u00e0m WiFi hi\u1ec3n th\u1ecb \u0111\u00e3 k\u1ebft n\u1ed1i nh\u01b0ng kh\u00f4ng c\u00f3 Internet.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 ch\u1ecdn qu\u00ean m\u1ea1ng, nh\u1eadp l\u1ea1i m\u1eadt kh\u1ea9u v\u00e0 \u0111\u01b0a IP c\u00f9ng DNS v\u1ec1 ch\u1ebf \u0111\u1ed9 t\u1ef1 \u0111\u1ed9ng. Tr\u00ean m\u00e1y t\u00ednh, c\u1ea7n ki\u1ec3m tra th\u00eam driver card m\u1ea1ng v\u00e0 ch\u1ebf \u0111\u1ed9 m\u00e1y bay.<\/span><\/p>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">Modem ho\u1eb7c router b\u1ecb l\u1ed7i<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Modem c\u00f3 th\u1ec3 g\u1eb7p l\u1ed7i ph\u1ea7n m\u1ec1m, qu\u00e1 nhi\u1ec7t, h\u1ecfng c\u1ed5ng LAN ho\u1eb7c l\u1ed7i ph\u1ea7n c\u1ee9ng sau th\u1eddi gian d\u00e0i s\u1eed d\u1ee5ng.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">D\u1ea5u hi\u1ec7u c\u1ea7n ch\u00fa \u00fd g\u1ed3m modem t\u1ef1 t\u1eaft b\u1eadt, t\u00ean WiFi th\u01b0\u1eddng xuy\u00ean bi\u1ebfn m\u1ea5t, c\u1ed5ng LAN kh\u00f4ng nh\u1eadn thi\u1ebft b\u1ecb ho\u1eb7c ch\u1ec9 c\u00f3 m\u1ea1ng sau m\u1ed7i l\u1ea7n kh\u1edfi \u0111\u1ed9ng l\u1ea1i.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">N\u1ebfu modem n\u00f3ng b\u1ea5t th\u01b0\u1eddng, c\u00f3 m\u00f9i l\u1ea1 ho\u1eb7c b\u1ed9 ngu\u1ed3n li\u00ean t\u1ee5c m\u1ea5t \u0111i\u1ec7n, ng\u01b0\u1eddi d\u00f9ng n\u00ean ng\u1eaft ngu\u1ed3n v\u00e0 li\u00ean h\u1ec7 k\u1ef9 thu\u1eadt. Kh\u00f4ng t\u1ef1 th\u00e1o v\u1ecf thi\u1ebft b\u1ecb.<\/span><\/p>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">M\u1ea1ng Viettel \u0111ang b\u1ea3o tr\u00ec ho\u1eb7c c\u00f3 s\u1ef1 c\u1ed1 khu v\u1ef1c<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">N\u1ebfu nhi\u1ec1u h\u1ed9 gia \u0111\u00ecnh g\u1ea7n nhau c\u00f9ng m\u1ea5t Internet, nguy\u00ean nh\u00e2n c\u00f3 th\u1ec3 n\u1eb1m \u1edf h\u1ed9p c\u00e1p, tuy\u1ebfn truy\u1ec1n d\u1eabn ho\u1eb7c h\u1ea1 t\u1ea7ng khu v\u1ef1c.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, vi\u1ec7c \u0111\u1ed5i m\u1eadt kh\u1ea9u, qu\u00ean m\u1ea1ng ho\u1eb7c reset modem th\u01b0\u1eddng kh\u00f4ng c\u00f3 t\u00e1c d\u1ee5ng. Ng\u01b0\u1eddi d\u00f9ng n\u00ean ki\u1ec3m tra th\u00f4ng tin tr\u00ean My Viettel ho\u1eb7c li\u00ean h\u1ec7 t\u1ed5ng \u0111\u00e0i \u0111\u1ec3 x\u00e1c nh\u1eadn t\u00ecnh tr\u1ea1ng \u0111\u01b0\u1eddng truy\u1ec1n.<\/span><\/p>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">D\u1ecbch v\u1ee5 b\u1ecb gi\u00e1n \u0111o\u1ea1n do v\u1ea5n \u0111\u1ec1 t\u00e0i kho\u1ea3n<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">M\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p k\u1ebft n\u1ed1i c\u00f3 th\u1ec3 b\u1ecb \u1ea3nh h\u01b0\u1edfng do th\u00f4ng tin d\u1ecbch v\u1ee5, h\u1ee3p \u0111\u1ed3ng ho\u1eb7c c\u01b0\u1edbc s\u1eed d\u1ee5ng c\u1ea7n \u0111\u01b0\u1ee3c ki\u1ec3m tra. Ng\u01b0\u1eddi d\u00f9ng n\u00ean \u0111\u0103ng nh\u1eadp My Viettel \u0111\u1ec3 xem tr\u1ea1ng th\u00e1i d\u1ecbch v\u1ee5 v\u00e0 th\u00f4ng tin t\u00e0i kho\u1ea3n tr\u01b0\u1edbc khi b\u00e1o l\u1ed7i thi\u1ebft b\u1ecb.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">N\u1ebfu kh\u00f4ng x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c nguy\u00ean nh\u00e2n, h\u00e3y cung c\u1ea5p s\u1ed1 \u0111i\u1ec7n tho\u1ea1i \u0111\u0103ng k\u00fd ho\u1eb7c m\u00e3 kh\u00e1ch h\u00e0ng \u0111\u1ec3 t\u1ed5ng \u0111\u00e0i ki\u1ec3m tra ch\u00ednh x\u00e1c \u0111\u01b0\u1eddng truy\u1ec1n.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Bang_chan_doan_nhanh_khi_WiFi_Viettel_mat_mang\"><\/span><span style=\"color: #ed1c24;\"><strong><span style=\"font-family: 'times new roman', times, serif;\">B\u1ea3ng ch\u1ea9n \u0111o\u00e1n nhanh khi WiFi Viettel m\u1ea5t m\u1ea1ng<\/span><\/strong><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<figure id=\"attachment_1907\" aria-describedby=\"caption-attachment-1907\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-1907 size-full\" title=\"B\u1ea3ng ch\u1ea9n \u0111o\u00e1n WiFi Viettel m\u1ea5t m\u1ea1ng\" src=\"http:\/\/viettelvtt.com\/wp-content\/uploads\/2026\/07\/internet-viettel-khong-co-mang-3.jpg\" alt=\"B\u1ea3ng ch\u1ea9n \u0111o\u00e1n WiFi Viettel m\u1ea5t m\u1ea1ng\" width=\"800\" height=\"600\" srcset=\"http:\/\/viettelvtt.com\/wp-content\/uploads\/2026\/07\/internet-viettel-khong-co-mang-3.jpg 800w, http:\/\/viettelvtt.com\/wp-content\/uploads\/2026\/07\/internet-viettel-khong-co-mang-3-533x400.jpg 533w, http:\/\/viettelvtt.com\/wp-content\/uploads\/2026\/07\/internet-viettel-khong-co-mang-3-768x576.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-1907\" class=\"wp-caption-text\">B\u1ea3ng ch\u1ea9n \u0111o\u00e1n WiFi Viettel m\u1ea5t m\u1ea1ng<\/figcaption><\/figure>\n<p><span style=\"font-family: 'times new roman', times, serif;\">B\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y gi\u00fap ng\u01b0\u1eddi d\u00f9ng nh\u1eadn bi\u1ebft l\u1ed7i tr\u01b0\u1edbc khi th\u1ef1c hi\u1ec7n quy tr\u00ecnh ki\u1ec3m tra chi ti\u1ebft.<\/span><\/p>\n<table dir=\"ltr\" style=\"width: 46.8364%; height: 273px;\" border=\"1\" cellspacing=\"0\" cellpadding=\"0\" data-sheets-root=\"1\" data-sheets-baot=\"1\">\n<colgroup>\n<col width=\"283\" \/>\n<col width=\"286\" \/>\n<col width=\"304\" \/><\/colgroup>\n<tbody>\n<tr style=\"height: 21px;\">\n<td style=\"height: 21px;\"><span style=\"font-family: 'times new roman', times, serif;\">Hi\u1ec7n t\u01b0\u1ee3ng<\/span><\/td>\n<td style=\"height: 21px;\"><span style=\"font-family: 'times new roman', times, serif;\">Nguy\u00ean nh\u00e2n c\u00f3 th\u1ec3<\/span><\/td>\n<td style=\"height: 21px;\"><span style=\"font-family: 'times new roman', times, serif;\">N\u00ean l\u00e0m g\u00ec tr\u01b0\u1edbc<\/span><\/td>\n<\/tr>\n<tr style=\"height: 21px;\">\n<td style=\"height: 21px;\"><span style=\"font-family: 'times new roman', times, serif;\">Kh\u00f4ng nh\u00ecn th\u1ea5y t\u00ean WiFi<\/span><\/td>\n<td style=\"height: 21px;\"><span style=\"font-family: 'times new roman', times, serif;\">Modem m\u1ea5t ngu\u1ed3n ho\u1eb7c ch\u1ee9c n\u0103ng WiFi t\u1eaft<\/span><\/td>\n<td style=\"height: 21px;\"><span style=\"font-family: 'times new roman', times, serif;\">Ki\u1ec3m tra Power v\u00e0 WLAN<\/span><\/td>\n<\/tr>\n<tr style=\"height: 21px;\">\n<td style=\"height: 21px;\"><span style=\"font-family: 'times new roman', times, serif;\">C\u00f3 WiFi nh\u01b0ng kh\u00f4ng v\u00e0o Internet<\/span><\/td>\n<td style=\"height: 21px;\"><span style=\"font-family: 'times new roman', times, serif;\">L\u1ed7i \u0111\u01b0\u1eddng truy\u1ec1n, modem, IP ho\u1eb7c DNS<\/span><\/td>\n<td style=\"height: 21px;\"><span style=\"font-family: 'times new roman', times, serif;\">Th\u1eed tr\u00ean thi\u1ebft b\u1ecb kh\u00e1c<\/span><\/td>\n<\/tr>\n<tr style=\"height: 21px;\">\n<td style=\"height: 21px;\"><span style=\"font-family: 'times new roman', times, serif;\">T\u1ea5t c\u1ea3 thi\u1ebft b\u1ecb c\u00f9ng m\u1ea5t m\u1ea1ng<\/span><\/td>\n<td style=\"height: 21px;\"><span style=\"font-family: 'times new roman', times, serif;\">L\u1ed7i modem, c\u00e1p quang ho\u1eb7c h\u1ea1 t\u1ea7ng<\/span><\/td>\n<td style=\"height: 21px;\"><span style=\"font-family: 'times new roman', times, serif;\">Quan s\u00e1t PON v\u00e0 LOS<\/span><\/td>\n<\/tr>\n<tr style=\"height: 21px;\">\n<td style=\"height: 21px;\"><span style=\"font-family: 'times new roman', times, serif;\">Ch\u1ec9 m\u1ed9t \u0111i\u1ec7n tho\u1ea1i m\u1ea5t m\u1ea1ng<\/span><\/td>\n<td style=\"height: 21px;\"><span style=\"font-family: 'times new roman', times, serif;\">L\u1ed7i tr\u00ean \u0111i\u1ec7n tho\u1ea1i<\/span><\/td>\n<td style=\"height: 21px;\"><span style=\"font-family: 'times new roman', times, serif;\">Qu\u00ean m\u1ea1ng v\u00e0 k\u1ebft n\u1ed1i l\u1ea1i<\/span><\/td>\n<\/tr>\n<tr style=\"height: 21px;\">\n<td style=\"height: 21px;\"><span style=\"font-family: 'times new roman', times, serif;\">LOS \u0111\u1ecf, PON t\u1eaft<\/span><\/td>\n<td style=\"height: 21px;\"><span style=\"font-family: 'times new roman', times, serif;\">M\u1ea5t t\u00edn hi\u1ec7u c\u00e1p quang<\/span><\/td>\n<td style=\"height: 21px;\"><span style=\"font-family: 'times new roman', times, serif;\">B\u00e1o k\u1ef9 thu\u1eadt<\/span><\/td>\n<\/tr>\n<tr style=\"height: 21px;\">\n<td style=\"height: 21px;\"><span style=\"font-family: 'times new roman', times, serif;\">PON xanh nh\u01b0ng kh\u00f4ng c\u00f3 Internet<\/span><\/td>\n<td style=\"height: 21px;\"><span style=\"font-family: 'times new roman', times, serif;\">L\u1ed7i k\u1ebft n\u1ed1i ho\u1eb7c c\u1ea5u h\u00ecnh modem<\/span><\/td>\n<td style=\"height: 21px;\"><span style=\"font-family: 'times new roman', times, serif;\">Kh\u1edfi \u0111\u1ed9ng l\u1ea1i modem<\/span><\/td>\n<\/tr>\n<tr style=\"height: 21px;\">\n<td style=\"height: 21px;\"><span style=\"font-family: 'times new roman', times, serif;\">Modem kh\u00f4ng s\u00e1ng \u0111\u00e8n<\/span><\/td>\n<td style=\"height: 21px;\"><span style=\"font-family: 'times new roman', times, serif;\">M\u1ea5t ngu\u1ed3n ho\u1eb7c h\u1ecfng b\u1ed9 ngu\u1ed3n<\/span><\/td>\n<td style=\"height: 21px;\"><span style=\"font-family: 'times new roman', times, serif;\">Ki\u1ec3m tra \u1ed5 \u0111i\u1ec7n<\/span><\/td>\n<\/tr>\n<tr style=\"height: 21px;\">\n<td style=\"height: 21px;\"><span style=\"font-family: 'times new roman', times, serif;\">Modem t\u1ef1 t\u1eaft b\u1eadt<\/span><\/td>\n<td style=\"height: 21px;\"><span style=\"font-family: 'times new roman', times, serif;\">Ngu\u1ed3n y\u1ebfu, qu\u00e1 n\u00f3ng ho\u1eb7c l\u1ed7i thi\u1ebft b\u1ecb<\/span><\/td>\n<td style=\"height: 21px;\"><span style=\"font-family: 'times new roman', times, serif;\">\u0110\u1ed5i \u1ed5 \u0111i\u1ec7n v\u00e0 b\u00e1o h\u1ed7 tr\u1ee3 n\u1ebfu t\u00e1i di\u1ec5n<\/span><\/td>\n<\/tr>\n<tr style=\"height: 21px;\">\n<td style=\"height: 21px;\"><span style=\"font-family: 'times new roman', times, serif;\">WiFi d\u00f9ng \u0111\u01b0\u1ee3c nh\u01b0ng LAN kh\u00f4ng \u0111\u01b0\u1ee3c<\/span><\/td>\n<td style=\"height: 21px;\"><span style=\"font-family: 'times new roman', times, serif;\">D\u00e2y ho\u1eb7c c\u1ed5ng LAN l\u1ed7i<\/span><\/td>\n<td style=\"height: 21px;\"><span style=\"font-family: 'times new roman', times, serif;\">\u0110\u1ed5i d\u00e2y v\u00e0 c\u1ed5ng<\/span><\/td>\n<\/tr>\n<tr style=\"height: 21px;\">\n<td style=\"height: 21px;\"><span style=\"font-family: 'times new roman', times, serif;\">LAN d\u00f9ng \u0111\u01b0\u1ee3c nh\u01b0ng WiFi kh\u00f4ng \u0111\u01b0\u1ee3c<\/span><\/td>\n<td style=\"height: 21px;\"><span style=\"font-family: 'times new roman', times, serif;\">L\u1ed7i b\u1ed9 ph\u00e1t kh\u00f4ng d\u00e2y<\/span><\/td>\n<td style=\"height: 21px;\"><span style=\"font-family: 'times new roman', times, serif;\">Ki\u1ec3m tra WLAN v\u00e0 kh\u1edfi \u0111\u1ed9ng modem<\/span><\/td>\n<\/tr>\n<tr style=\"height: 21px;\">\n<td style=\"height: 21px;\"><span style=\"font-family: 'times new roman', times, serif;\">Ch\u1ec9 m\u1ed9t website kh\u00f4ng m\u1edf \u0111\u01b0\u1ee3c<\/span><\/td>\n<td style=\"height: 21px;\"><span style=\"font-family: 'times new roman', times, serif;\">Website, DNS ho\u1eb7c tr\u00ecnh duy\u1ec7t l\u1ed7i<\/span><\/td>\n<td style=\"height: 21px;\"><span style=\"font-family: 'times new roman', times, serif;\">M\u1edf website kh\u00e1c<\/span><\/td>\n<\/tr>\n<tr style=\"height: 21px;\">\n<td style=\"height: 21px;\"><span style=\"font-family: 'times new roman', times, serif;\">M\u1ea5t m\u1ea1ng sau m\u01b0a l\u1edbn<\/span><\/td>\n<td style=\"height: 21px;\"><span style=\"font-family: 'times new roman', times, serif;\">D\u00e2y quang ho\u1eb7c h\u1ea1 t\u1ea7ng b\u1ecb \u1ea3nh h\u01b0\u1edfng<\/span><\/td>\n<td style=\"height: 21px;\"><span style=\"font-family: 'times new roman', times, serif;\">Ki\u1ec3m tra LOS v\u00e0 b\u00e1o h\u1ecfng<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-family: 'times new roman', times, serif;\">M\u1ed9t l\u1ed7i c\u00f3 th\u1ec3 c\u00f3 nhi\u1ec1u nguy\u00ean nh\u00e2n. V\u00ec v\u1eady, b\u1ea3ng tr\u00ean ch\u1ec9 \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 khoanh v\u00f9ng ban \u0111\u1ea7u, kh\u00f4ng thay th\u1ebf to\u00e0n b\u1ed9 qu\u00e1 tr\u00ecnh ki\u1ec3m tra.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Cach_kiem_tra_Internet_Viettel_khong_co_mang_theo_7_buoc\"><\/span><span style=\"color: #ed1c24;\"><strong><span style=\"font-family: 'times new roman', times, serif;\">C\u00e1ch ki\u1ec3m tra Internet Viettel kh\u00f4ng c\u00f3 m\u1ea1ng theo 7 b\u01b0\u1edbc<\/span><\/strong><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<figure id=\"attachment_1908\" aria-describedby=\"caption-attachment-1908\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-1908 size-full\" title=\"Ki\u1ec3m tra Internet Viettel kh\u00f4ng c\u00f3 m\u1ea1ng theo 7 b\u01b0\u1edbc\" src=\"http:\/\/viettelvtt.com\/wp-content\/uploads\/2026\/07\/internet-viettel-khong-co-mang-4.jpg\" alt=\"Ki\u1ec3m tra Internet Viettel kh\u00f4ng c\u00f3 m\u1ea1ng theo 7 b\u01b0\u1edbc\" width=\"800\" height=\"600\" srcset=\"http:\/\/viettelvtt.com\/wp-content\/uploads\/2026\/07\/internet-viettel-khong-co-mang-4.jpg 800w, http:\/\/viettelvtt.com\/wp-content\/uploads\/2026\/07\/internet-viettel-khong-co-mang-4-533x400.jpg 533w, http:\/\/viettelvtt.com\/wp-content\/uploads\/2026\/07\/internet-viettel-khong-co-mang-4-768x576.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-1908\" class=\"wp-caption-text\">Ki\u1ec3m tra Internet Viettel kh\u00f4ng c\u00f3 m\u1ea1ng theo 7 b\u01b0\u1edbc<\/figcaption><\/figure>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Quy tr\u00ecnh n\u00ean \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n t\u1eeb \u0111\u01a1n gi\u1ea3n \u0111\u1ebfn n\u00e2ng cao. Ng\u01b0\u1eddi d\u00f9ng kh\u00f4ng c\u1ea7n th\u00e1o modem ho\u1eb7c thay \u0111\u1ed5i c\u1ea5u h\u00ecnh GPON trong qu\u00e1 tr\u00ecnh ki\u1ec3m tra.<\/span><\/p>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">B\u01b0\u1edbc 1: Th\u1eed Internet tr\u00ean thi\u1ebft b\u1ecb kh\u00e1c<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">H\u00e3y s\u1eed d\u1ee5ng m\u1ed9t \u0111i\u1ec7n tho\u1ea1i, m\u00e1y t\u00ednh ho\u1eb7c tivi kh\u00e1c \u0111ang k\u1ebft n\u1ed1i c\u00f9ng m\u1ea1ng. M\u1edf m\u1ed9t v\u00e0i website v\u00e0 \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn \u0111\u1ec3 ki\u1ec3m tra.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">N\u1ebfu ch\u1ec9 m\u1ed9t thi\u1ebft b\u1ecb kh\u00f4ng v\u00e0o \u0111\u01b0\u1ee3c m\u1ea1ng, h\u00e3y t\u1eadp trung x\u1eed l\u00fd thi\u1ebft b\u1ecb \u0111\u00f3. N\u1ebfu t\u1ea5t c\u1ea3 thi\u1ebft b\u1ecb c\u00f9ng m\u1ea5t Internet, chuy\u1ec3n sang ki\u1ec3m tra modem.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">C\u0169ng n\u00ean th\u1eed c\u1ea3 WiFi v\u00e0 d\u00e2y LAN n\u1ebfu c\u00f3 \u0111i\u1ec1u ki\u1ec7n. Khi d\u00e2y LAN ho\u1ea1t \u0111\u1ed9ng nh\u01b0ng WiFi kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng, \u0111\u01b0\u1eddng truy\u1ec1n c\u00f3 th\u1ec3 v\u1eabn b\u00ecnh th\u01b0\u1eddng v\u00e0 l\u1ed7i n\u1eb1m \u1edf b\u1ed9 ph\u00e1t kh\u00f4ng d\u00e2y.<\/span><\/p>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">B\u01b0\u1edbc 2: Ki\u1ec3m tra t\u00ean WiFi v\u00e0 kho\u1ea3ng c\u00e1ch \u0111\u1ebfn modem<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">\u0110\u1ee9ng g\u1ea7n modem r\u1ed3i ki\u1ec3m tra l\u1ea1i danh s\u00e1ch WiFi.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">N\u1ebfu t\u00ean m\u1ea1ng kh\u00f4ng xu\u1ea5t hi\u1ec7n tr\u00ean b\u1ea5t k\u1ef3 thi\u1ebft b\u1ecb n\u00e0o, modem c\u00f3 th\u1ec3 m\u1ea5t ngu\u1ed3n, ch\u1ee9c n\u0103ng WLAN b\u1ecb t\u1eaft ho\u1eb7c thi\u1ebft b\u1ecb \u0111ang g\u1eb7p l\u1ed7i. N\u1ebfu t\u00ean WiFi xu\u1ea5t hi\u1ec7n \u1edf g\u1ea7n modem nh\u01b0ng bi\u1ebfn m\u1ea5t t\u1ea1i ph\u00f2ng xa, nguy\u00ean nh\u00e2n ch\u1ee7 y\u1ebfu li\u00ean quan \u0111\u1ebfn v\u00f9ng ph\u1ee7 s\u00f3ng.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Kh\u00f4ng n\u00ean nh\u1ea7m t\u00edn hi\u1ec7u WiFi y\u1ebfu v\u1edbi m\u1ea5t Internet Viettel. Vi\u1ec7c \u0111\u1ee9ng g\u1ea7n modem gi\u00fap lo\u1ea1i tr\u1eeb kho\u1ea3ng c\u00e1ch v\u00e0 v\u1eadt c\u1ea3n tr\u01b0\u1edbc khi ki\u1ec3m tra \u0111\u01b0\u1eddng truy\u1ec1n.<\/span><\/p>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">B\u01b0\u1edbc 3: Quan s\u00e1t \u0111\u00e8n Power, PON, LOS v\u00e0 Internet<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">\u0110\u00e2y l\u00e0 b\u01b0\u1edbc quan tr\u1ecdng nh\u1ea5t khi to\u00e0n b\u1ed9 thi\u1ebft b\u1ecb m\u1ea5t k\u1ebft n\u1ed1i.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Tr\u01b0\u1edbc ti\u00ean, \u0111\u00e8n Power c\u1ea7n s\u00e1ng \u1ed5n \u0111\u1ecbnh. Sau \u0111\u00f3 ki\u1ec3m tra PON v\u00e0 LOS. N\u1ebfu PON s\u00e1ng xanh v\u00e0 LOS t\u1eaft, modem th\u01b0\u1eddng v\u1eabn nh\u1eadn \u0111\u01b0\u1ee3c t\u00edn hi\u1ec7u quang. N\u1ebfu LOS \u0111\u1ecf ho\u1eb7c nh\u1ea5p nh\u00e1y, \u0111\u01b0\u1eddng quang c\u00f3 th\u1ec3 \u0111ang g\u1eb7p s\u1ef1 c\u1ed1.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Ti\u1ebfp t\u1ee5c ki\u1ec3m tra \u0111\u00e8n Internet, WiFi v\u00e0 LAN. Vi\u1ec7c modem s\u00e1ng m\u1ed9t s\u1ed1 \u0111\u00e8n kh\u00f4ng \u0111\u1ee7 \u0111\u1ec3 k\u1ebft lu\u1eadn \u0111\u01b0\u1eddng truy\u1ec1n \u0111ang ho\u1ea1t \u0111\u1ed9ng.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Khi LOS \u0111\u1ecf, kh\u00f4ng c\u1ea7n kh\u1edfi \u0111\u1ed9ng modem nhi\u1ec1u l\u1ea7n. Ng\u01b0\u1eddi d\u00f9ng n\u00ean gi\u1eef nguy\u00ean d\u00e2y v\u00e0 chu\u1ea9n b\u1ecb b\u00e1o k\u1ef9 thu\u1eadt.<\/span><\/p>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">B\u01b0\u1edbc 4: Ki\u1ec3m tra ngu\u1ed3n \u0111i\u1ec7n v\u00e0 d\u00e2y k\u1ebft n\u1ed1i<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Ki\u1ec3m tra b\u1ed9 ngu\u1ed3n c\u00f3 c\u1eafm ch\u1eafc kh\u00f4ng, n\u00fat ngu\u1ed3n c\u00f3 \u0111ang b\u1eadt kh\u00f4ng v\u00e0 \u1ed5 \u0111i\u1ec7n c\u00f3 ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">V\u1edbi d\u00e2y LAN, c\u00f3 th\u1ec3 r\u00fat ra r\u1ed3i c\u1eafm l\u1ea1i ho\u1eb7c chuy\u1ec3n sang c\u1ed5ng kh\u00e1c. V\u1edbi d\u00e2y quang, ch\u1ec9 n\u00ean quan s\u00e1t xem d\u00e2y c\u00f3 b\u1ecb \u0111\u1ee9t, g\u1eadp, k\u1eb9p ho\u1eb7c k\u00e9o c\u0103ng hay kh\u00f4ng.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Kh\u00f4ng t\u1ef1 r\u00fat \u0111\u1ea7u quang, lau \u0111\u1ea7u n\u1ed1i b\u1eb1ng v\u1eadt li\u1ec7u th\u00f4ng th\u01b0\u1eddng ho\u1eb7c d\u00f9ng b\u0103ng d\u00ednh \u0111\u1ec3 n\u1ed1i d\u00e2y. N\u1ebfu th\u1ea5y d\u00e2y b\u1ecb \u0111\u1ee9t, h\u00e3y gi\u1eef nguy\u00ean hi\u1ec7n tr\u1ea1ng v\u00e0 b\u00e1o k\u1ef9 thu\u1eadt.<\/span><\/p>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">B\u01b0\u1edbc 5: Kh\u1edfi \u0111\u1ed9ng l\u1ea1i modem \u0111\u00fang c\u00e1ch<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Nh\u1ea5n n\u00fat ON\/OFF \u0111\u1ec3 t\u1eaft modem, ch\u1edd kho\u1ea3ng 2\u20133 ph\u00fat r\u1ed3i b\u1eadt l\u1ea1i. Sau khi b\u1eadt, c\u1ea7n ch\u1edd c\u00e1c \u0111\u00e8n \u1ed5n \u0111\u1ecbnh tr\u01b0\u1edbc khi th\u1eed truy c\u1eadp Internet.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Viettel h\u01b0\u1edbng d\u1eabn s\u1eed d\u1ee5ng n\u00fat ON\/OFF thay v\u00ec n\u00fat Reset khi mu\u1ed1n kh\u1edfi \u0111\u1ed9ng l\u1ea1i modem. M\u1ed9t s\u1ed1 t\u00e0i kho\u1ea3n v\u00e0 thi\u1ebft b\u1ecb c\u0169ng c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 thao t\u00e1c kh\u1edfi \u0111\u1ed9ng modem t\u1eeb ph\u1ea7n qu\u1ea3n l\u00fd modem tr\u00ean My Viettel.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Kh\u00f4ng nh\u1ea5n gi\u1eef n\u00fat Reset n\u1ebfu ch\u01b0a bi\u1ebft c\u00e1ch c\u1ea5u h\u00ecnh l\u1ea1i modem. Reset c\u00f3 th\u1ec3 \u0111\u01b0a thi\u1ebft b\u1ecb v\u1ec1 tr\u1ea1ng th\u00e1i m\u1eb7c \u0111\u1ecbnh v\u00e0 l\u00e0m m\u1ea5t t\u00ean WiFi, m\u1eadt kh\u1ea9u ho\u1eb7c c\u1ea5u h\u00ecnh k\u1ebft n\u1ed1i \u0111ang s\u1eed d\u1ee5ng.<\/span><\/p>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">B\u01b0\u1edbc 6: L\u00e0m m\u1edbi k\u1ebft n\u1ed1i tr\u00ean \u0111i\u1ec7n tho\u1ea1i ho\u1eb7c m\u00e1y t\u00ednh<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">N\u1ebfu modem c\u00f3 t\u00edn hi\u1ec7u b\u00ecnh th\u01b0\u1eddng nh\u01b0ng m\u1ed9t thi\u1ebft b\u1ecb v\u1eabn kh\u00f4ng v\u00e0o \u0111\u01b0\u1ee3c m\u1ea1ng, h\u00e3y x\u1eed l\u00fd tr\u1ef1c ti\u1ebfp tr\u00ean thi\u1ebft b\u1ecb \u0111\u00f3.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Tr\u00ean \u0111i\u1ec7n tho\u1ea1i, ch\u1ecdn qu\u00ean m\u1ea1ng WiFi, sau \u0111\u00f3 k\u1ebft n\u1ed1i l\u1ea1i b\u1eb1ng \u0111\u00fang m\u1eadt kh\u1ea9u. T\u1eaft VPN, proxy ho\u1eb7c DNS th\u1ee7 c\u00f4ng n\u1ebfu \u0111ang s\u1eed d\u1ee5ng. C\u00f3 th\u1ec3 b\u1eadt ch\u1ebf \u0111\u1ed9 m\u00e1y bay trong v\u00e0i gi\u00e2y r\u1ed3i t\u1eaft \u0111\u1ec3 l\u00e0m m\u1edbi k\u1ebft n\u1ed1i.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Tr\u00ean m\u00e1y t\u00ednh, ki\u1ec3m tra ch\u1ebf \u0111\u1ed9 m\u00e1y bay, card WiFi, d\u00e2y LAN v\u00e0 tr\u1ea1ng th\u00e1i nh\u1eadn \u0111\u1ecba ch\u1ec9 IP. N\u1ebfu c\u00f3 th\u1ec3, h\u00e3y th\u1eed k\u1ebft n\u1ed1i m\u00e1y t\u00ednh v\u1edbi \u0111i\u1ec3m ph\u00e1t WiFi t\u1eeb \u0111i\u1ec7n tho\u1ea1i. N\u1ebfu m\u00e1y t\u00ednh v\u1eabn kh\u00f4ng v\u00e0o \u0111\u01b0\u1ee3c m\u1ea1ng, l\u1ed7i c\u00f3 th\u1ec3 n\u1eb1m tr\u00ean m\u00e1y t\u00ednh thay v\u00ec Internet Viettel.<\/span><\/p>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">B\u01b0\u1edbc 7: Ki\u1ec3m tra t\u1ed1c \u0111\u1ed9 v\u00e0 b\u00e1o h\u1ecfng n\u1ebfu ch\u01b0a kh\u1eafc ph\u1ee5c<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">N\u1ebfu Internet \u0111\u00e3 ho\u1ea1t \u0111\u1ed9ng tr\u1edf l\u1ea1i nh\u01b0ng t\u1ed1c \u0111\u1ed9 th\u1ea5p ho\u1eb7c th\u01b0\u1eddng xuy\u00ean m\u1ea5t k\u1ebft n\u1ed1i, h\u00e3y \u0111o b\u1eb1ng Speedtest trong \u0111i\u1ec1u ki\u1ec7n ph\u00f9 h\u1ee3p.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">N\u00ean d\u1eebng t\u1ea3i t\u1ec7p, t\u1eaft VPN, t\u1ea1m ng\u1eaft c\u00e1c thi\u1ebft b\u1ecb kh\u00f4ng c\u1ea7n thi\u1ebft v\u00e0 \u0111\u1ee9ng g\u1ea7n modem. N\u1ebfu c\u00f3 m\u00e1y t\u00ednh c\u00f9ng d\u00e2y LAN, k\u1ebft qu\u1ea3 \u0111o qua d\u00e2y s\u1ebd gi\u00fap gi\u1ea3m \u1ea3nh h\u01b0\u1edfng c\u1ee7a kho\u1ea3ng c\u00e1ch v\u00e0 nhi\u1ec5u WiFi.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Kh\u00f4ng n\u00ean k\u1ebft lu\u1eadn \u0111\u01b0\u1eddng truy\u1ec1n l\u1ed7i ch\u1ec9 t\u1eeb m\u1ed9t l\u1ea7n \u0111o. H\u00e3y \u0111o nhi\u1ec1u l\u1ea7n v\u00e0 ghi l\u1ea1i t\u1ed1c \u0111\u1ed9 download, upload, ping c\u00f9ng th\u1eddi \u0111i\u1ec3m x\u1ea3y ra s\u1ef1 c\u1ed1.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">N\u1ebfu to\u00e0n b\u1ed9 thi\u1ebft b\u1ecb v\u1eabn m\u1ea5t Internet sau 7 b\u01b0\u1edbc, modem b\u00e1o LOS \u0111\u1ecf ho\u1eb7c d\u00e2y quang c\u00f3 d\u1ea5u hi\u1ec7u h\u01b0 h\u1ecfng, ng\u01b0\u1eddi d\u00f9ng n\u00ean li\u00ean h\u1ec7 h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Cach_khac_phuc_theo_tung_tinh_trang_mat_Internet_Viettel\"><\/span><strong><span style=\"font-family: 'times new roman', times, serif;\">C\u00e1ch kh\u1eafc ph\u1ee5c theo t\u1eebng t\u00ecnh tr\u1ea1ng m\u1ea5t Internet Viettel<\/span><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-family: 'times new roman', times, serif;\">M\u1ed7i hi\u1ec7n t\u01b0\u1ee3ng c\u1ea7n m\u1ed9t h\u01b0\u1edbng x\u1eed l\u00fd kh\u00e1c nhau. Ng\u01b0\u1eddi d\u00f9ng n\u00ean \u00e1p d\u1ee5ng \u0111\u00fang tr\u01b0\u1eddng h\u1ee3p thay v\u00ec reset modem ngay t\u1eeb \u0111\u1ea7u.<\/span><\/p>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">C\u00f3 WiFi nh\u01b0ng kh\u00f4ng c\u00f3 Internet<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">H\u00e3y th\u1eed truy c\u1eadp b\u1eb1ng hai thi\u1ebft b\u1ecb kh\u00e1c nhau. N\u1ebfu t\u1ea5t c\u1ea3 thi\u1ebft b\u1ecb c\u00f9ng kh\u00f4ng v\u00e0o \u0111\u01b0\u1ee3c m\u1ea1ng, ki\u1ec3m tra PON, LOS v\u00e0 Internet tr\u00ean modem.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Sau \u0111\u00f3 kh\u1edfi \u0111\u1ed9ng l\u1ea1i modem b\u1eb1ng n\u00fat ngu\u1ed3n. N\u1ebfu \u0111\u00e8n quang b\u00ecnh th\u01b0\u1eddng nh\u01b0ng m\u1ea1ng ch\u01b0a ho\u1ea1t \u0111\u1ed9ng, c\u1ea7n li\u00ean h\u1ec7 h\u1ed7 tr\u1ee3 \u0111\u1ec3 ki\u1ec3m tra k\u1ebft n\u1ed1i.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">N\u1ebfu ch\u1ec9 m\u1ed9t thi\u1ebft b\u1ecb g\u1eb7p l\u1ed7i, ch\u1ecdn qu\u00ean m\u1ea1ng, nh\u1eadp l\u1ea1i m\u1eadt kh\u1ea9u, t\u1eaft VPN v\u00e0 \u0111\u01b0a IP c\u00f9ng DNS v\u1ec1 t\u1ef1 \u0111\u1ed9ng.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Xem h\u01b0\u1edbng d\u1eabn chuy\u00ean s\u00e2u t\u1ea1i b\u00e0i: C\u00f3 WiFi nh\u01b0ng kh\u00f4ng v\u00e0o \u0111\u01b0\u1ee3c m\u1ea1ng: Nguy\u00ean nh\u00e2n v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c.<\/span><\/p>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">Modem c\u00f3 \u0111\u00e8n nh\u01b0ng kh\u00f4ng c\u00f3 m\u1ea1ng<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">\u0110\u1ea7u ti\u00ean, x\u00e1c \u0111\u1ecbnh nh\u1eefng \u0111\u00e8n n\u00e0o \u0111ang s\u00e1ng. N\u1ebfu ch\u1ec9 Power v\u00e0 WiFi s\u00e1ng nh\u01b0ng PON t\u1eaft ho\u1eb7c LOS \u0111\u1ecf, modem c\u00f3 ngu\u1ed3n v\u00e0 v\u1eabn ph\u00e1t WiFi nh\u01b0ng kh\u00f4ng nh\u1eadn \u0111\u01b0\u1ee3c t\u00edn hi\u1ec7u Internet.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">N\u1ebfu PON xanh, LOS t\u1eaft nh\u01b0ng \u0111\u00e8n Internet kh\u00f4ng s\u00e1ng, h\u00e3y kh\u1edfi \u0111\u1ed9ng l\u1ea1i modem v\u00e0 th\u1eed tr\u00ean thi\u1ebft b\u1ecb kh\u00e1c. Kh\u00f4ng reset thi\u1ebft b\u1ecb khi ch\u01b0a c\u00f3 h\u01b0\u1edbng d\u1eabn.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">N\u1ebfu t\u00ecnh tr\u1ea1ng ti\u1ebfp t\u1ee5c k\u00e9o d\u00e0i, c\u1ea7n b\u00e1o h\u1ed7 tr\u1ee3 \u0111\u1ec3 ki\u1ec3m tra phi\u00ean k\u1ebft n\u1ed1i ho\u1eb7c c\u1ea5u h\u00ecnh modem.<\/span><\/p>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">Modem b\u00e1o \u0111\u00e8n LOS \u0111\u1ecf<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">\u0110\u00e8n LOS \u0111\u1ecf th\u01b0\u1eddng li\u00ean quan \u0111\u1ebfn t\u00edn hi\u1ec7u quang. Ng\u01b0\u1eddi d\u00f9ng n\u00ean quan s\u00e1t d\u00e2y trong nh\u00e0 xem c\u00f3 b\u1ecb \u0111\u1ee9t, g\u1eadp ho\u1eb7c k\u1eb9p kh\u00f4ng.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Kh\u00f4ng t\u1ef1 th\u00e1o \u0111\u1ea7u quang, c\u1eaft n\u1ed1i d\u00e2y ho\u1eb7c thay \u0111\u1ed5i v\u1ecb tr\u00ed modem b\u1eb1ng c\u00e1ch k\u00e9o d\u00e2y. H\u00e3y li\u00ean h\u1ec7 k\u1ef9 thu\u1eadt Viettel v\u00e0 m\u00f4 t\u1ea3 r\u00f5 \u0111\u00e8n LOS \u0111ang \u0111\u1ecf ho\u1eb7c nh\u1ea5p nh\u00e1y.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Xem th\u00eam: \u0110\u00e8n LOS \u0111\u1ecf tr\u00ean modem Viettel l\u00e0 l\u1ed7i g\u00ec?.<\/span><\/p>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">Kh\u00f4ng nh\u00ecn th\u1ea5y t\u00ean WiFi Viettel<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Ki\u1ec3m tra modem c\u00f3 \u0111i\u1ec7n kh\u00f4ng v\u00e0 \u0111\u00e8n WLAN c\u00f3 s\u00e1ng kh\u00f4ng. Sau \u0111\u00f3 \u0111\u1ee9ng g\u1ea7n modem, t\u1eaft r\u1ed3i b\u1eadt WiFi tr\u00ean \u0111i\u1ec7n tho\u1ea1i.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">N\u1ebfu m\u1ecdi thi\u1ebft b\u1ecb \u0111\u1ec1u kh\u00f4ng nh\u00ecn th\u1ea5y t\u00ean m\u1ea1ng d\u00f9 modem c\u00f3 ngu\u1ed3n, h\u00e3y kh\u1edfi \u0111\u1ed9ng l\u1ea1i modem. Tr\u01b0\u1eddng h\u1ee3p t\u00ean WiFi v\u1eabn kh\u00f4ng xu\u1ea5t hi\u1ec7n c\u00f3 th\u1ec3 li\u00ean quan \u0111\u1ebfn ch\u1ee9c n\u0103ng ph\u00e1t kh\u00f4ng d\u00e2y ho\u1eb7c l\u1ed7i thi\u1ebft b\u1ecb.<\/span><\/p>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">Ch\u1ec9 m\u1ed9t \u0111i\u1ec7n tho\u1ea1i kh\u00f4ng v\u00e0o m\u1ea1ng<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Kh\u00f4ng reset modem trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">H\u00e3y qu\u00ean m\u1ea1ng WiFi, nh\u1eadp l\u1ea1i m\u1eadt kh\u1ea9u, t\u1eaft VPN, \u0111\u01b0a DNS v\u1ec1 t\u1ef1 \u0111\u1ed9ng v\u00e0 kh\u1edfi \u0111\u1ed9ng \u0111i\u1ec7n tho\u1ea1i. N\u1ebfu v\u1eabn l\u1ed7i, th\u1eed \u0111i\u1ec7n tho\u1ea1i v\u1edbi m\u1ed9t m\u1ea1ng WiFi kh\u00e1c \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh v\u1ea5n \u0111\u1ec1 c\u00f3 n\u1eb1m tr\u00ean thi\u1ebft b\u1ecb hay kh\u00f4ng.<\/span><\/p>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">Ch\u1ec9 m\u00e1y t\u00ednh c\u1eafm LAN kh\u00f4ng c\u00f3 m\u1ea1ng<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">R\u00fat v\u00e0 c\u1eafm l\u1ea1i d\u00e2y LAN, ki\u1ec3m tra \u0111\u00e8n t\u1ea1i c\u1ed5ng m\u1ea1ng r\u1ed3i chuy\u1ec3n sang c\u1ed5ng LAN kh\u00e1c.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">N\u1ebfu c\u00f3 d\u00e2y d\u1ef1 ph\u00f2ng, h\u00e3y th\u1eed \u0111\u1ed5i d\u00e2y. Khi \u0111i\u1ec7n tho\u1ea1i v\u1eabn s\u1eed d\u1ee5ng WiFi b\u00ecnh th\u01b0\u1eddng nh\u01b0ng m\u00e1y t\u00ednh kh\u00f4ng v\u00e0o m\u1ea1ng qua LAN, nguy\u00ean nh\u00e2n th\u01b0\u1eddng n\u1eb1m \u1edf d\u00e2y, c\u1ed5ng ho\u1eb7c card m\u1ea1ng c\u1ee7a m\u00e1y t\u00ednh.<\/span><\/p>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">M\u1ea5t m\u1ea1ng sau m\u01b0a l\u1edbn<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Ki\u1ec3m tra \u0111\u00e8n modem v\u00e0 quan s\u00e1t d\u00e2y t\u1eeb v\u1ecb tr\u00ed an to\u00e0n. Kh\u00f4ng leo m\u00e1i nh\u00e0, c\u1ed9t \u0111i\u1ec7n ho\u1eb7c ch\u1ea1m v\u00e0o c\u00e1c \u0111\u01b0\u1eddng d\u00e2y kh\u00f4ng x\u00e1c \u0111\u1ecbnh.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">N\u1ebfu LOS \u0111\u1ecf ho\u1eb7c nh\u00ecn th\u1ea5y d\u00e2y quang b\u1ecb \u0111\u1ee9t, h\u00e3y b\u00e1o h\u1ecfng v\u00e0 gi\u1eef nguy\u00ean hi\u1ec7n tr\u1ea1ng.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Xem h\u01b0\u1edbng d\u1eabn: Internet Viettel b\u1ecb m\u1ea5t sau m\u01b0a l\u1edbn: Nguy\u00ean nh\u00e2n v\u00e0 c\u00e1ch x\u1eed l\u00fd.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Khi_nao_co_the_tu_xu_ly_va_khi_nao_can_goi_ky_thuat\"><\/span><span style=\"color: #ed1c24;\"><strong><span style=\"font-family: 'times new roman', times, serif;\">Khi n\u00e0o c\u00f3 th\u1ec3 t\u1ef1 x\u1eed l\u00fd v\u00e0 khi n\u00e0o c\u1ea7n g\u1ecdi k\u1ef9 thu\u1eadt?<\/span><\/strong><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<figure id=\"attachment_1909\" aria-describedby=\"caption-attachment-1909\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-1909 size-full\" title=\"T\u1ef1 x\u1eed l\u00fd ho\u1eb7c g\u1ecdi k\u1ef9 thu\u1eadt Viettel\" src=\"http:\/\/viettelvtt.com\/wp-content\/uploads\/2026\/07\/internet-viettel-khong-co-mang-5.jpg\" alt=\"T\u1ef1 x\u1eed l\u00fd ho\u1eb7c g\u1ecdi k\u1ef9 thu\u1eadt Viettel\" width=\"800\" height=\"600\" srcset=\"http:\/\/viettelvtt.com\/wp-content\/uploads\/2026\/07\/internet-viettel-khong-co-mang-5.jpg 800w, http:\/\/viettelvtt.com\/wp-content\/uploads\/2026\/07\/internet-viettel-khong-co-mang-5-533x400.jpg 533w, http:\/\/viettelvtt.com\/wp-content\/uploads\/2026\/07\/internet-viettel-khong-co-mang-5-768x576.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-1909\" class=\"wp-caption-text\">T\u1ef1 x\u1eed l\u00fd ho\u1eb7c g\u1ecdi k\u1ef9 thu\u1eadt Viettel<\/figcaption><\/figure>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 t\u1ef1 x\u1eed l\u00fd khi l\u1ed7i ch\u1ec9 x\u1ea3y ra tr\u00ean m\u1ed9t thi\u1ebft b\u1ecb, d\u00e2y LAN b\u1ecb l\u1ecfng, modem c\u1ea7n kh\u1edfi \u0111\u1ed9ng l\u1ea1i, \u0111i\u1ec7n tho\u1ea1i \u0111ang b\u1eadt VPN ho\u1eb7c WiFi y\u1ebfu do \u0111\u1ee9ng qu\u00e1 xa b\u1ed9 ph\u00e1t.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Nh\u1eefng thao t\u00e1c t\u01b0\u01a1ng \u0111\u1ed1i an to\u00e0n g\u1ed3m kh\u1edfi \u0111\u1ed9ng modem b\u1eb1ng n\u00fat ON\/OFF, qu\u00ean m\u1ea1ng WiFi, kh\u1edfi \u0111\u1ed9ng \u0111i\u1ec7n tho\u1ea1i, ki\u1ec3m tra d\u00e2y LAN, \u0111\u1ed5i \u1ed5 c\u1eafm v\u00e0 th\u1eed k\u1ebft n\u1ed1i b\u1eb1ng thi\u1ebft b\u1ecb kh\u00e1c.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">N\u00ean g\u1ecdi k\u1ef9 thu\u1eadt khi LOS \u0111\u1ecf, PON kh\u00f4ng s\u00e1ng, d\u00e2y c\u00e1p quang b\u1ecb \u0111\u1ee9t, modem m\u1ea5t ngu\u1ed3n d\u00f9 \u1ed5 \u0111i\u1ec7n b\u00ecnh th\u01b0\u1eddng, thi\u1ebft b\u1ecb t\u1ef1 kh\u1edfi \u0111\u1ed9ng li\u00ean t\u1ee5c ho\u1eb7c to\u00e0n b\u1ed9 thi\u1ebft b\u1ecb m\u1ea5t Internet k\u00e9o d\u00e0i.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Ng\u01b0\u1eddi d\u00f9ng c\u0169ng n\u00ean b\u00e1o h\u1ed7 tr\u1ee3 n\u1ebfu m\u1ea1ng li\u00ean t\u1ee5c m\u1ea5t k\u1ebft n\u1ed1i sau khi \u0111\u00e3 kh\u1edfi \u0111\u1ed9ng modem, th\u1eed thi\u1ebft b\u1ecb kh\u00e1c v\u00e0 ki\u1ec3m tra b\u1eb1ng d\u00e2y LAN.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Kh\u00f4ng n\u00ean t\u1ef1 m\u1edf v\u1ecf modem, thay b\u1ed9 ngu\u1ed3n sai th\u00f4ng s\u1ed1, th\u00e1o \u0111\u1ea7u c\u00e1p quang ho\u1eb7c ch\u1ec9nh s\u1eeda c\u00e1c th\u00f4ng s\u1ed1 GPON. Vi\u1ec7c Reset modem c\u0169ng ch\u1ec9 n\u00ean th\u1ef1c hi\u1ec7n khi hi\u1ec3u r\u00f5 c\u1ea5u h\u00ecnh ho\u1eb7c c\u00f3 h\u01b0\u1edbng d\u1eabn t\u1eeb k\u1ef9 thu\u1eadt vi\u00ean. Viettel l\u01b0u \u00fd ng\u01b0\u1eddi d\u00f9ng ch\u1ec9 n\u00ean reset khi c\u00f3 kh\u1ea3 n\u0103ng c\u00e0i \u0111\u1eb7t l\u1ea1i modem sau \u0111\u00f3.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Cach_bao_hong_Internet_Viettel_nhanh_chong\"><\/span><span style=\"color: #ed1c24;\"><strong><span style=\"font-family: 'times new roman', times, serif;\">C\u00e1ch b\u00e1o h\u1ecfng Internet Viettel nhanh ch\u00f3ng<\/span><\/strong><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<figure id=\"attachment_1910\" aria-describedby=\"caption-attachment-1910\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-1910\" src=\"http:\/\/viettelvtt.com\/wp-content\/uploads\/2026\/07\/internet-viettel-khong-co-mang-6.jpg\" alt=\"C\u00e1ch b\u00e1o h\u1ecfng Internet Viettel nhanh ch\u00f3ng\" width=\"800\" height=\"600\" title=\"\" srcset=\"http:\/\/viettelvtt.com\/wp-content\/uploads\/2026\/07\/internet-viettel-khong-co-mang-6.jpg 800w, http:\/\/viettelvtt.com\/wp-content\/uploads\/2026\/07\/internet-viettel-khong-co-mang-6-533x400.jpg 533w, http:\/\/viettelvtt.com\/wp-content\/uploads\/2026\/07\/internet-viettel-khong-co-mang-6-768x576.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-1910\" class=\"wp-caption-text\">C\u00e1ch b\u00e1o h\u1ecfng Internet Viettel nhanh ch\u00f3ng<\/figcaption><\/figure>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Khi \u0111\u00e3 ki\u1ec3m tra \u0111\u1ee7 7 b\u01b0\u1edbc nh\u01b0ng m\u1ea1ng ch\u01b0a ho\u1ea1t \u0111\u1ed9ng, ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 b\u00e1o h\u1ecfng qua \u1ee9ng d\u1ee5ng My Viettel ho\u1eb7c t\u1ed5ng \u0111\u00e0i d\u1ecbch v\u1ee5 c\u1ed1 \u0111\u1ecbnh.<\/span><\/p>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">B\u00e1o h\u1ecfng tr\u00ean My Viettel<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Viettel c\u00f3 h\u1ed7 tr\u1ee3 g\u1eedi y\u00eau c\u1ea7u b\u00e1o h\u1ecfng Internet th\u00f4ng qua \u1ee9ng d\u1ee5ng My Viettel. T\u00f9y phi\u00ean b\u1ea3n \u1ee9ng d\u1ee5ng, ng\u01b0\u1eddi d\u00f9ng c\u1ea7n \u0111\u0103ng nh\u1eadp t\u00e0i kho\u1ea3n qu\u1ea3n l\u00fd d\u1ecbch v\u1ee5, ch\u1ecdn thu\u00ea bao Internet, truy c\u1eadp ph\u1ea7n h\u1ed7 tr\u1ee3 v\u00e0 g\u1eedi y\u00eau c\u1ea7u ki\u1ec3m tra.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Tr\u01b0\u1edbc khi g\u1eedi, h\u00e3y ki\u1ec3m tra \u0111\u1ecba ch\u1ec9 l\u1eafp \u0111\u1eb7t v\u00e0 s\u1ed1 \u0111i\u1ec7n tho\u1ea1i li\u00ean h\u1ec7. N\u1ed9i dung n\u00ean m\u00f4 t\u1ea3 r\u00f5 th\u1eddi \u0111i\u1ec3m m\u1ea5t m\u1ea1ng, tr\u1ea1ng th\u00e1i \u0111\u00e8n modem v\u00e0 s\u1ed1 l\u01b0\u1ee3ng thi\u1ebft b\u1ecb b\u1ecb \u1ea3nh h\u01b0\u1edfng.<\/span><\/p>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">G\u1ecdi t\u1ed5ng \u0111\u00e0i Internet Viettel<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Viettel c\u00f4ng b\u1ed1 1800 8119 l\u00e0 k\u00eanh t\u01b0 v\u1ea5n, b\u00e1o h\u1ecfng v\u00e0 h\u1ed7 tr\u1ee3 kh\u00e1ch h\u00e0ng s\u1eed d\u1ee5ng d\u1ecbch v\u1ee5 c\u1ed1 \u0111\u1ecbnh, truy\u1ec1n h\u00ecnh v\u00e0 Internet c\u00e1p quang. Cu\u1ed9c g\u1ecdi \u0111\u1ebfn k\u00eanh n\u00e0y \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 l\u00e0 mi\u1ec5n ph\u00ed t\u1eeb thu\u00ea bao Viettel v\u00e0 c\u00e1c m\u1ea1ng kh\u00e1c.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Khi g\u1ecdi, n\u00ean chu\u1ea9n b\u1ecb s\u1ed1 \u0111i\u1ec7n tho\u1ea1i \u0111\u0103ng k\u00fd, m\u00e3 kh\u00e1ch h\u00e0ng n\u1ebfu c\u00f3, \u0111\u1ecba ch\u1ec9 l\u1eafp \u0111\u1eb7t v\u00e0 tr\u1ea1ng th\u00e1i \u0111\u00e8n PON, LOS, Internet.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">C\u00f3 th\u1ec3 m\u00f4 t\u1ea3 s\u1ef1 c\u1ed1 nh\u01b0 sau:<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">\u201cInternet Viettel t\u1ea1i \u0111\u1ecba ch\u1ec9 c\u1ee7a t\u00f4i m\u1ea5t t\u1eeb kho\u1ea3ng 20 gi\u1edd. T\u1ea5t c\u1ea3 \u0111i\u1ec7n tho\u1ea1i v\u00e0 m\u00e1y t\u00ednh \u0111\u1ec1u kh\u00f4ng v\u00e0o \u0111\u01b0\u1ee3c m\u1ea1ng. Modem v\u1eabn c\u00f3 ngu\u1ed3n nh\u01b0ng \u0111\u00e8n LOS \u0111ang nh\u1ea5p nh\u00e1y \u0111\u1ecf. T\u00f4i \u0111\u00e3 kh\u1edfi \u0111\u1ed9ng l\u1ea1i modem nh\u01b0ng ch\u01b0a kh\u1eafc ph\u1ee5c \u0111\u01b0\u1ee3c.\u201d<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">C\u00e1ch m\u00f4 t\u1ea3 c\u1ee5 th\u1ec3 gi\u00fap b\u1ed9 ph\u1eadn h\u1ed7 tr\u1ee3 ph\u00e2n lo\u1ea1i s\u1ef1 c\u1ed1 nhanh h\u01a1n so v\u1edbi vi\u1ec7c ch\u1ec9 n\u00f3i \u201cWiFi b\u1ecb l\u1ed7i\u201d.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Xem th\u00eam: C\u00e1ch b\u00e1o h\u1ecfng Internet Viettel nhanh nh\u1ea5t.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Cau_hoi_thuong_gap_ve_Internet_Viettel_khong_co_mang\"><\/span><span style=\"color: #ed1c24;\"><strong><span style=\"font-family: 'times new roman', times, serif;\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 Internet Viettel kh\u00f4ng c\u00f3 m\u1ea1ng<\/span><\/strong><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">Internet Viettel kh\u00f4ng c\u00f3 m\u1ea1ng ph\u1ea3i ki\u1ec3m tra g\u00ec \u0111\u1ea7u ti\u00ean?<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">H\u00e3y th\u1eed tr\u00ean m\u1ed9t thi\u1ebft b\u1ecb kh\u00e1c \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh l\u1ed7i x\u1ea3y ra tr\u00ean m\u1ed9t thi\u1ebft b\u1ecb hay to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng. Sau \u0111\u00f3 quan s\u00e1t \u0111\u00e8n Power, PON, LOS v\u00e0 Internet tr\u00ean modem.<\/span><\/p>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">T\u1ea1i sao \u0111i\u1ec7n tho\u1ea1i c\u00f3 WiFi nh\u01b0ng kh\u00f4ng v\u00e0o \u0111\u01b0\u1ee3c Internet?<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Modem v\u1eabn c\u00f3 th\u1ec3 ph\u00e1t WiFi d\u00f9 \u0111\u01b0\u1eddng truy\u1ec1n \u0111\u00e3 m\u1ea5t k\u1ebft n\u1ed1i. Ngo\u00e0i ra, l\u1ed7i c\u00f3 th\u1ec3 n\u1eb1m \u1edf IP, DNS, VPN ho\u1eb7c c\u1ea5u h\u00ecnh tr\u00ean \u0111i\u1ec7n tho\u1ea1i.<\/span><\/p>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">Modem c\u00f3 \u0111\u00e8n nh\u01b0ng kh\u00f4ng c\u00f3 m\u1ea1ng ph\u1ea3i l\u00e0m sao?<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">C\u1ea7n ki\u1ec3m tra ch\u00ednh x\u00e1c \u0111\u00e8n n\u00e0o \u0111ang s\u00e1ng. N\u1ebfu LOS \u0111\u1ecf ho\u1eb7c PON kh\u00f4ng s\u00e1ng, n\u00ean b\u00e1o k\u1ef9 thu\u1eadt. N\u1ebfu t\u00edn hi\u1ec7u quang b\u00ecnh th\u01b0\u1eddng, h\u00e3y kh\u1edfi \u0111\u1ed9ng l\u1ea1i modem v\u00e0 th\u1eed thi\u1ebft b\u1ecb kh\u00e1c.<\/span><\/p>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">\u0110\u00e8n LOS \u0111\u1ecf c\u00f3 t\u1ef1 kh\u1eafc ph\u1ee5c \u0111\u01b0\u1ee3c kh\u00f4ng?<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Ng\u01b0\u1eddi d\u00f9ng ch\u1ec9 n\u00ean ki\u1ec3m tra d\u00e2y b\u1eb1ng m\u1eaft th\u01b0\u1eddng. Kh\u00f4ng n\u00ean t\u1ef1 th\u00e1o ho\u1eb7c n\u1ed1i d\u00e2y quang. N\u1ebfu LOS ti\u1ebfp t\u1ee5c \u0111\u1ecf, h\u00e3y b\u00e1o k\u1ef9 thu\u1eadt Viettel.<\/span><\/p>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">C\u00f3 n\u00ean Reset modem khi m\u1ea5t Internet kh\u00f4ng?<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Kh\u00f4ng n\u00ean Reset khi ch\u01b0a c\u00f3 th\u00f4ng tin c\u1ea5u h\u00ecnh. H\u00e3y s\u1eed d\u1ee5ng n\u00fat ON\/OFF \u0111\u1ec3 kh\u1edfi \u0111\u1ed9ng l\u1ea1i modem tr\u01b0\u1edbc.<\/span><\/p>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">Kh\u1edfi \u0111\u1ed9ng l\u1ea1i modem c\u00f3 m\u1ea5t m\u1eadt kh\u1ea9u WiFi kh\u00f4ng?<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Kh\u1edfi \u0111\u1ed9ng l\u1ea1i b\u1eb1ng n\u00fat ngu\u1ed3n th\u01b0\u1eddng kh\u00f4ng l\u00e0m m\u1ea5t m\u1eadt kh\u1ea9u. Reset modem m\u1edbi c\u00f3 th\u1ec3 \u0111\u01b0a thi\u1ebft b\u1ecb v\u1ec1 tr\u1ea1ng th\u00e1i m\u1eb7c \u0111\u1ecbnh.<\/span><\/p>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">T\u1ea1i sao ch\u1ec9 m\u1ed9t \u0111i\u1ec7n tho\u1ea1i kh\u00f4ng v\u00e0o \u0111\u01b0\u1ee3c WiFi?<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">\u0110i\u1ec7n tho\u1ea1i c\u00f3 th\u1ec3 l\u01b0u sai m\u1eadt kh\u1ea9u, nh\u1eadn sai IP ho\u1eb7c \u0111ang d\u00f9ng VPN, proxy hay DNS th\u1ee7 c\u00f4ng. H\u00e3y qu\u00ean m\u1ea1ng r\u1ed3i k\u1ebft n\u1ed1i l\u1ea1i.<\/span><\/p>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">WiFi d\u00f9ng \u0111\u01b0\u1ee3c nh\u01b0ng m\u00e1y t\u00ednh c\u1eafm LAN kh\u00f4ng c\u00f3 m\u1ea1ng l\u00e0 l\u1ed7i g\u00ec?<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Nguy\u00ean nh\u00e2n c\u00f3 th\u1ec3 n\u1eb1m \u1edf d\u00e2y LAN, \u0111\u1ea7u c\u1eafm, c\u1ed5ng modem ho\u1eb7c card m\u1ea1ng tr\u00ean m\u00e1y t\u00ednh. H\u00e3y th\u1eed \u0111\u1ed5i d\u00e2y v\u00e0 \u0111\u1ed5i c\u1ed5ng.<\/span><\/p>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">T\u1ea1i sao ch\u1ec9 m\u1ed9t website kh\u00f4ng truy c\u1eadp \u0111\u01b0\u1ee3c?<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Website c\u00f3 th\u1ec3 \u0111ang b\u1ea3o tr\u00ec, m\u00e1y ch\u1ee7 g\u1eb7p l\u1ed7i ho\u1eb7c tr\u00ecnh duy\u1ec7t l\u01b0u d\u1eef li\u1ec7u kh\u00f4ng ch\u00ednh x\u00e1c. H\u00e3y th\u1eed website kh\u00e1c v\u00e0 \u0111\u1ed5i tr\u00ecnh duy\u1ec7t tr\u01b0\u1edbc khi b\u00e1o l\u1ed7i \u0111\u01b0\u1eddng truy\u1ec1n.<\/span><\/p>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">Speedtest kh\u00f4ng ch\u1ea1y \u0111\u01b0\u1ee3c c\u00f3 ph\u1ea3i m\u1ea5t Internet kh\u00f4ng?<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">N\u1ebfu c\u00e1c website v\u00e0 \u1ee9ng d\u1ee5ng kh\u00e1c c\u0169ng kh\u00f4ng truy c\u1eadp \u0111\u01b0\u1ee3c, k\u1ebft n\u1ed1i c\u00f3 th\u1ec3 \u0111ang b\u1ecb gi\u00e1n \u0111o\u1ea1n. N\u1ebfu ch\u1ec9 Speedtest kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng, c\u1ea7n ki\u1ec3m tra l\u1ea1i tr\u00ecnh duy\u1ec7t ho\u1eb7c d\u1ecbch v\u1ee5 \u0111o.<\/span><\/p>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">Khi n\u00e0o c\u1ea7n g\u1ecdi t\u1ed5ng \u0111\u00e0i Viettel?<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">N\u00ean g\u1ecdi khi LOS \u0111\u1ecf, PON kh\u00f4ng s\u00e1ng, to\u00e0n b\u1ed9 thi\u1ebft b\u1ecb m\u1ea5t m\u1ea1ng k\u00e9o d\u00e0i, modem t\u1ef1 t\u1eaft b\u1eadt ho\u1eb7c c\u00e1c b\u01b0\u1edbc ki\u1ec3m tra c\u01a1 b\u1ea3n kh\u00f4ng kh\u1eafc ph\u1ee5c \u0111\u01b0\u1ee3c.<\/span><\/p>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">B\u00e1o h\u1ecfng Internet Viettel b\u1eb1ng s\u1ed1 n\u00e0o?<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">K\u00eanh h\u1ed7 tr\u1ee3 d\u1ecbch v\u1ee5 c\u1ed1 \u0111\u1ecbnh, truy\u1ec1n h\u00ecnh v\u00e0 Internet c\u00e1p quang c\u1ee7a Viettel l\u00e0 1800 8119.<\/span><\/p>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">C\u00f3 th\u1ec3 b\u00e1o h\u1ecfng qua My Viettel kh\u00f4ng?<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">C\u00f3. Viettel h\u1ed7 tr\u1ee3 kh\u00e1ch h\u00e0ng g\u1eedi y\u00eau c\u1ea7u b\u00e1o h\u1ecfng Internet th\u00f4ng qua \u1ee9ng d\u1ee5ng My Viettel.<\/span><\/p>\n<h3><strong><span style=\"font-family: 'times new roman', times, serif;\">M\u1ea5t m\u1ea1ng sau m\u01b0a l\u1edbn c\u00f3 n\u00ean t\u1ef1 ki\u1ec3m tra d\u00e2y kh\u00f4ng?<\/span><\/strong><\/h3>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Ch\u1ec9 n\u00ean quan s\u00e1t t\u1eeb v\u1ecb tr\u00ed an to\u00e0n. Kh\u00f4ng leo cao ho\u1eb7c ch\u1ea1m v\u00e0o d\u00e2y \u0111i\u1ec7n, d\u00e2y c\u00e1p b\u00ean ngo\u00e0i. Khi LOS \u0111\u1ecf ho\u1eb7c d\u00e2y quang b\u1ecb \u0111\u1ee9t, h\u00e3y b\u00e1o k\u1ef9 thu\u1eadt.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Ket_luan\"><\/span><span style=\"color: #ed1c24;\"><strong><span style=\"font-family: 'times new roman', times, serif;\">K\u1ebft lu\u1eadn<\/span><\/strong><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-family: 'times new roman', times, serif;\">Khi Internet Viettel kh\u00f4ng c\u00f3 m\u1ea1ng, ng\u01b0\u1eddi d\u00f9ng n\u00ean ki\u1ec3m tra theo tr\u00ecnh t\u1ef1: th\u1eed thi\u1ebft b\u1ecb kh\u00e1c, ki\u1ec3m tra t\u00ean WiFi, quan s\u00e1t \u0111\u00e8n modem, ki\u1ec3m tra ngu\u1ed3n v\u00e0 d\u00e2y k\u1ebft n\u1ed1i, kh\u1edfi \u0111\u1ed9ng l\u1ea1i modem, l\u00e0m m\u1edbi k\u1ebft n\u1ed1i tr\u00ean thi\u1ebft b\u1ecb r\u1ed3i \u0111o t\u1ed1c \u0111\u1ed9.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">N\u1ebfu l\u1ed7i ch\u1ec9 x\u1ea3y ra tr\u00ean m\u1ed9t \u0111i\u1ec7n tho\u1ea1i ho\u1eb7c m\u00e1y t\u00ednh, h\u00e3y x\u1eed l\u00fd thi\u1ebft b\u1ecb tr\u01b0\u1edbc. N\u1ebfu to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng m\u1ea5t m\u1ea1ng, LOS \u0111\u1ecf, PON kh\u00f4ng s\u00e1ng ho\u1eb7c d\u00e2y c\u00e1p quang b\u1ecb h\u01b0 h\u1ecfng, ng\u01b0\u1eddi d\u00f9ng n\u00ean b\u00e1o k\u1ef9 thu\u1eadt thay v\u00ec t\u1ef1 th\u00e1o modem ho\u1eb7c reset c\u1ea5u h\u00ecnh.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>T\u00ecnh tr\u1ea1ng Internet Viettel kh\u00f4ng c\u00f3 m\u1ea1ng c\u00f3 th\u1ec3 x\u1ea3y ra \u0111\u1ed9t ng\u1ed9t trong khi \u0111ang h\u1ecdc t\u1eadp, l\u00e0m vi\u1ec7c, xem truy\u1ec1n h\u00ecnh ho\u1eb7c s\u1eed d\u1ee5ng c\u00e1c thi\u1ebft b\u1ecb th\u00f4ng minh. \u0110i\u1ec7n tho\u1ea1i c\u00f3 th\u1ec3 v\u1eabn hi\u1ec3n th\u1ecb bi\u1ec3u t\u01b0\u1ee3ng WiFi, modem v\u1eabn s\u00e1ng \u0111\u00e8n nh\u01b0ng website v\u00e0 \u1ee9ng d\u1ee5ng \u0111\u1ec1u kh\u00f4ng t\u1ea3i \u0111\u01b0\u1ee3c. Trong<\/p>\n","protected":false},"author":1,"featured_media":1905,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[92,1],"tags":[559,562,561,560,558],"class_list":["post-1902","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc","category-uncategorized","tag-internet-khong-ket-noi","tag-mang-viettel-loi","tag-mat-internet-viettel","tag-modem-co-den-nhung-khong-co-mang","tag-wifi-viettel-mat-mang"],"_links":{"self":[{"href":"https:\/\/viettelvtt.com\/wp-json\/wp\/v2\/posts\/1902","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/viettelvtt.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/viettelvtt.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/viettelvtt.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/viettelvtt.com\/wp-json\/wp\/v2\/comments?post=1902"}],"version-history":[{"count":4,"href":"https:\/\/viettelvtt.com\/wp-json\/wp\/v2\/posts\/1902\/revisions"}],"predecessor-version":[{"id":1912,"href":"https:\/\/viettelvtt.com\/wp-json\/wp\/v2\/posts\/1902\/revisions\/1912"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/viettelvtt.com\/wp-json\/wp\/v2\/media\/1905"}],"wp:attachment":[{"href":"https:\/\/viettelvtt.com\/wp-json\/wp\/v2\/media?parent=1902"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/viettelvtt.com\/wp-json\/wp\/v2\/categories?post=1902"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/viettelvtt.com\/wp-json\/wp\/v2\/tags?post=1902"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}