{"id":584737,"date":"2026-08-21T10:29:37","date_gmt":"2026-08-21T03:29:37","guid":{"rendered":"https:\/\/hoanghamobile.com\/tin-tuc\/?p=584737"},"modified":"2026-08-21T10:29:37","modified_gmt":"2026-08-21T03:29:37","slug":"dien-thoai-khong-ket-noi-duoc-wifi","status":"publish","type":"post","link":"https:\/\/hoanghamobile.com\/tin-tuc\/dien-thoai-khong-ket-noi-duoc-wifi\/","title":{"rendered":"\u0110i\u1ec7n tho\u1ea1i kh\u00f4ng k\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c WiFi: nguy\u00ean nh\u00e2n v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c"},"content":{"rendered":"<p>\u0110i\u1ec7n tho\u1ea1i kh\u00f4ng k\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c Wi-Fi c\u00f3 m\u1ed9t ph\u00e9p th\u1eed ph\u00e2n lo\u1ea1i m\u00e0 b\u1ea1n n\u00ean l\u00e0m tr\u01b0\u1edbc m\u1ecdi th\u1ee9 kh\u00e1c: h\u1ecfi ng\u01b0\u1eddi b\u00ean c\u1ea1nh xem m\u00e1y h\u1ecd c\u00f3 v\u00e0o m\u1ea1ng \u0111\u01b0\u1ee3c kh\u00f4ng, ho\u1eb7c th\u1eed k\u1ebft n\u1ed1i b\u1eb1ng m\u1ed9t thi\u1ebft b\u1ecb kh\u00e1c trong nh\u00e0. N\u1ebfu m\u1ecdi thi\u1ebft b\u1ecb \u0111\u1ec1u kh\u00f4ng v\u00e0o \u0111\u01b0\u1ee3c, v\u1ea5n \u0111\u1ec1 n\u1eb1m \u1edf b\u1ed9 ph\u00e1t ho\u1eb7c \u0111\u01b0\u1eddng truy\u1ec1n \u2014 b\u1ea1n d\u00e0nh bao nhi\u00eau th\u1eddi gian s\u1eeda m\u00e1y c\u0169ng v\u00f4 \u00edch. N\u1ebfu ch\u1ec9 m\u00ecnh m\u00e1y b\u1ea1n b\u1ecb, h\u01b0\u1edbng x\u1eed l\u00fd ho\u00e0n to\u00e0n kh\u00e1c v\u00e0 c\u00f3 m\u1ed9t thao t\u00e1c hi\u1ec7u qu\u1ea3 \u0111\u1ebfn b\u1ea5t ng\u1edd: qu\u00ean m\u1ea1ng r\u1ed3i k\u1ebft n\u1ed1i l\u1ea1i t\u1eeb \u0111\u1ea7u. L\u00fd do l\u00e0 m\u00e1y l\u01b0u m\u1ed9t h\u1ed3 s\u01a1 cho m\u1ed7i m\u1ea1ng Wi-Fi \u2014 g\u1ed3m m\u1eadt kh\u1ea9u, ki\u1ec3u b\u1ea3o m\u1eadt v\u00e0 c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt \u2014 v\u00e0 h\u1ed3 s\u01a1 n\u00e0y r\u1ea5t hay b\u1ecb h\u1ecfng sau khi b\u1ed9 ph\u00e1t \u0111\u1ed5i c\u1ea5u h\u00ecnh ho\u1eb7c sau m\u1ed9t b\u1ea3n c\u1eadp nh\u1eadt h\u1ec7 th\u1ed1ng.<\/p>\n<h2>Ph\u00e2n bi\u1ec7t b\u1ed1n t\u00ecnh hu\u1ed1ng tr\u01b0\u1edbc khi s\u1eeda<\/h2>\n<p>B\u1ed1n t\u00ecnh hu\u1ed1ng d\u01b0\u1edbi \u0111\u00e2y tr\u00f4ng gi\u1ed1ng nhau nh\u01b0ng nguy\u00ean nh\u00e2n ho\u00e0n to\u00e0n kh\u00e1c bi\u1ec7t:<\/p>\n<ul>\n<li>Kh\u00f4ng th\u1ea5y t\u00ean m\u1ea1ng trong danh s\u00e1ch: M\u00e1y qu\u00e9t kh\u00f4ng ra m\u1ea1ng \u0111\u00f3 \u2014 c\u00f3 th\u1ec3 do kho\u1ea3ng c\u00e1ch qu\u00e1 xa, do b\u0103ng t\u1ea7n m\u00e1y kh\u00f4ng h\u1ed7 tr\u1ee3, ho\u1eb7c do t\u00ean m\u1ea1ng b\u1ecb \u1ea9n.<\/li>\n<li>Th\u1ea5y m\u1ea1ng nh\u01b0ng b\u00e1o sai m\u1eadt kh\u1ea9u d\u00f9 nh\u1eadp \u0111\u00fang: \u0110\u00e2y g\u1ea7n nh\u01b0 lu\u00f4n l\u00e0 s\u1ef1 c\u1ed1 h\u1ed3 s\u01a1 m\u1ea1ng \u0111\u00e3 l\u01b0u b\u1ecb l\u1ed7i, kh\u00f4ng ph\u1ea3i do b\u1ea1n nh\u1edb nh\u1ea7m m\u1eadt kh\u1ea9u.<\/li>\n<li>K\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c nh\u01b0ng hi\u1ec7n d\u1ea5u ch\u1ea5m than, kh\u00f4ng v\u00e0o \u0111\u01b0\u1ee3c internet: M\u00e1y \u0111\u00e3 n\u1ed1i v\u00e0o b\u1ed9 ph\u00e1t th\u00e0nh c\u00f4ng nh\u01b0ng kh\u00f4ng ra \u0111\u01b0\u1ee3c internet \u2014 v\u1ea5n \u0111\u1ec1 n\u1eb1m \u1edf \u0111\u01b0\u1eddng truy\u1ec1n, \u0111\u1ecba ch\u1ec9 IP ho\u1eb7c m\u00e1y ch\u1ee7 ph\u00e2n gi\u1ea3i t\u00ean mi\u1ec1n (DNS).<\/li>\n<li>K\u1ebft n\u1ed1i r\u1ed3i t\u1ef1 ng\u1eaft li\u00ean t\u1ee5c: Th\u01b0\u1eddng do t\u00edn hi\u1ec7u s\u00f3ng y\u1ebfu \u1edf v\u1ecb tr\u00ed b\u1ea1n \u0111\u1ee9ng, ho\u1eb7c do t\u00ednh n\u0103ng t\u1ef1 \u0111\u1ed9ng chuy\u1ec3n \u0111\u1ed5i m\u1ea1ng c\u1ee7a h\u1ec7 \u0111i\u1ec1u h\u00e0nh.<\/li>\n<\/ul>\n<p>Ph\u00e9p th\u1eed quy\u1ebft \u0111\u1ecbnh: Th\u1eed m\u1ed9t thi\u1ebft b\u1ecb kh\u00e1c tr\u00ean c\u00f9ng m\u1ea1ng. N\u1ebfu thi\u1ebft b\u1ecb kia c\u0169ng kh\u00f4ng v\u00e0o \u0111\u01b0\u1ee3c th\u00ec v\u1ea5n \u0111\u1ec1 n\u1eb1m ngo\u00e0i \u0111i\u1ec7n tho\u1ea1i c\u1ee7a b\u1ea1n. Ng\u01b0\u1ee3c l\u1ea1i, h\u00e3y th\u1eed m\u00e1y b\u1ea1n tr\u00ean m\u1ed9t m\u1ea1ng kh\u00e1c (ch\u1eb3ng h\u1ea1n \u0111i\u1ec3m ph\u00e1t Wi-Fi di \u0111\u1ed9ng t\u1eeb \u0111i\u1ec7n tho\u1ea1i ng\u01b0\u1eddi kh\u00e1c); n\u1ebfu v\u00e0o \u0111\u01b0\u1ee3c b\u00ecnh th\u01b0\u1eddng th\u00ec ph\u1ea7n c\u1ee9ng Wi-Fi c\u1ee7a m\u00e1y ho\u00e0n to\u00e0n kh\u1ecfe m\u1ea1nh.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-586527 aligncenter\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/dien-thoai-khong-ket-noi-duoc-wifi-1.jpg\" alt=\"dien-thoai-khong-ket-noi-duoc-wifi-1\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/dien-thoai-khong-ket-noi-duoc-wifi-1.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/dien-thoai-khong-ket-noi-duoc-wifi-1-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/dien-thoai-khong-ket-noi-duoc-wifi-1-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2>B\u1ea3ng ch\u1ea9n \u0111o\u00e1n theo tri\u1ec7u ch\u1ee9ng<\/h2>\n<table>\n<thead>\n<tr>\n<th>Tri\u1ec7u ch\u1ee9ng<\/th>\n<th>Nguy\u00ean nh\u00e2n th\u01b0\u1eddng g\u1eb7p<\/th>\n<th>L\u1ed7i \u1edf \u0111\u00e2u<\/th>\n<th>Vi\u1ec7c n\u00ean l\u00e0m \u0111\u1ea7u ti\u00ean<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>B\u00e1o sai m\u1eadt kh\u1ea9u d\u00f9 nh\u1eadp \u0111\u00fang<\/td>\n<td>H\u1ed3 s\u01a1 m\u1ea1ng \u0111\u00e3 l\u01b0u b\u1ecb h\u1ecfng<\/td>\n<td>M\u00e1y<\/td>\n<td>Qu\u00ean m\u1ea1ng r\u1ed3i k\u1ebft n\u1ed1i l\u1ea1i<\/td>\n<\/tr>\n<tr>\n<td>K\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c nh\u01b0ng c\u00f3 d\u1ea5u ch\u1ea5m than<\/td>\n<td>Kh\u00f4ng ra \u0111\u01b0\u1ee3c internet<\/td>\n<td>\u0110\u01b0\u1eddng truy\u1ec1n \/ \u0111\u1ecba ch\u1ec9<\/td>\n<td>Kh\u1edfi \u0111\u1ed9ng l\u1ea1i b\u1ed9 ph\u00e1t<\/td>\n<\/tr>\n<tr>\n<td>Kh\u00f4ng th\u1ea5y t\u00ean m\u1ea1ng nh\u00e0 m\u00ecnh<\/td>\n<td>B\u0103ng t\u1ea7n ho\u1eb7c t\u00ean m\u1ea1ng b\u1ecb \u1ea9n<\/td>\n<td>B\u1ed9 ph\u00e1t<\/td>\n<td>B\u1eadt b\u0103ng t\u1ea7n ph\u1ed5 th\u00f4ng<\/td>\n<\/tr>\n<tr>\n<td>M\u1ecdi thi\u1ebft b\u1ecb \u0111\u1ec1u kh\u00f4ng v\u00e0o \u0111\u01b0\u1ee3c<\/td>\n<td>B\u1ed9 ph\u00e1t ho\u1eb7c nh\u00e0 m\u1ea1ng<\/td>\n<td>Ngo\u00e0i m\u00e1y<\/td>\n<td>R\u00fat \u0111i\u1ec7n b\u1ed9 ph\u00e1t 30 gi\u00e2y<\/td>\n<\/tr>\n<tr>\n<td>K\u1ebft n\u1ed1i r\u1ed3i t\u1ef1 ng\u1eaft li\u00ean t\u1ee5c<\/td>\n<td>S\u00f3ng y\u1ebfu ho\u1eb7c t\u1ef1 chuy\u1ec3n m\u1ea1ng<\/td>\n<td>V\u1ecb tr\u00ed \/ thi\u1ebft l\u1eadp<\/td>\n<td>T\u1eaft t\u1ef1 chuy\u1ec3n sang d\u1eef li\u1ec7u di \u0111\u1ed9ng<\/td>\n<\/tr>\n<tr>\n<td>Ch\u1ec9 l\u1ed7i sau khi c\u1eadp nh\u1eadt h\u1ec7 th\u1ed1ng<\/td>\n<td>C\u1ea5u h\u00ecnh m\u1ea1ng xung \u0111\u1ed9t<\/td>\n<td>M\u00e1y<\/td>\n<td>\u0110\u1eb7t l\u1ea1i thi\u1ebft l\u1eadp m\u1ea1ng<\/td>\n<\/tr>\n<tr>\n<td>V\u00e0o \u0111\u01b0\u1ee3c nh\u01b0ng r\u1ea5t ch\u1eadm<\/td>\n<td>B\u0103ng th\u00f4ng ho\u1eb7c qu\u00e1 nhi\u1ec1u thi\u1ebft b\u1ecb<\/td>\n<td>M\u1ea1ng<\/td>\n<td>\u0110o t\u1ed1c \u0111\u1ed9 t\u1ea1i ch\u1ed7, \u0111\u1ed5i b\u0103ng t\u1ea7n<\/td>\n<\/tr>\n<tr>\n<td>Ch\u1ec9 l\u1ed7i \u1edf WiFi c\u00f4ng c\u1ed9ng<\/td>\n<td>Ch\u01b0a qua trang \u0111\u0103ng nh\u1eadp<\/td>\n<td>M\u1ea1ng c\u00f4ng c\u1ed9ng<\/td>\n<td>M\u1edf tr\u00ecnh duy\u1ec7t \u0111\u1ec3 hi\u1ec7n trang \u0111\u0103ng nh\u1eadp<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>Xem th\u00eam: <a href=\"https:\/\/hoanghamobile.com\/tin-tuc\/mat-dien-thoai-phai-lam-sao\/\">M\u1ea5t \u0111i\u1ec7n tho\u1ea1i ph\u1ea3i l\u00e0m sao? 7 vi\u1ec7c c\u1ea7n l\u00e0m theo th\u1ee9 t\u1ef1 \u01b0u ti\u00ean<\/a><\/strong><\/p>\n<h2>Qu\u00ean m\u1ea1ng r\u1ed3i k\u1ebft n\u1ed1i l\u1ea1i: thao t\u00e1c hi\u1ec7u qu\u1ea3 nh\u1ea5t<\/h2>\n<p>N\u1ebfu m\u00e1y b\u00e1o sai m\u1eadt kh\u1ea9u d\u00f9 b\u1ea1n ch\u1eafc ch\u1eafn nh\u1eadp \u0111\u00fang, \u0111\u00e2y l\u00e0 c\u00e1ch x\u1eed l\u00fd v\u00e0 n\u00f3 g\u1ea7n nh\u01b0 lu\u00f4n ph\u00e1t huy hi\u1ec7u qu\u1ea3:<\/p>\n<ul>\n<li>C\u01a1 ch\u1ebf k\u1ef9 thu\u1eadt: M\u1ed7i khi b\u1ea1n k\u1ebft n\u1ed1i m\u1ed9t m\u1ea1ng Wi-Fi, m\u00e1y s\u1ebd t\u1ef1 \u0111\u1ed9ng l\u01b0u l\u1ea1i m\u1ed9t h\u1ed3 s\u01a1 g\u1ed3m t\u00ean m\u1ea1ng, m\u1eadt kh\u1ea9u, ki\u1ec3u b\u1ea3o m\u1eadt v\u00e0 c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt \u0111i k\u00e8m. Nh\u1eefng l\u1ea7n ti\u1ebfp theo, m\u00e1y s\u1ebd s\u1eed d\u1ee5ng l\u1ea1i h\u1ed3 s\u01a1 n\u00e0y \u0111\u1ec3 k\u1ebft n\u1ed1i t\u1ef1 \u0111\u1ed9ng.<\/li>\n<li>Nguy\u00ean nh\u00e2n g\u00e2y l\u1ed7i: S\u1ef1 c\u1ed1 x\u1ea3y ra khi b\u1ed9 ph\u00e1t thay \u0111\u1ed5i c\u1ea5u h\u00ecnh (\u0111\u1ed5i m\u1eadt kh\u1ea9u, \u0111\u1ed5i ki\u1ec3u b\u1ea3o m\u1eadt, c\u1eadp nh\u1eadt ph\u1ea7n m\u1ec1m) trong khi m\u00e1y v\u1eabn l\u01b0u h\u1ed3 s\u01a1 c\u0169. M\u00e1y c\u1ed1 k\u1ebft n\u1ed1i b\u1eb1ng th\u00f4ng tin c\u0169 n\u00ean b\u1ecb h\u1ec7 th\u1ed1ng t\u1eeb ch\u1ed1i v\u00e0 hi\u1ec3n th\u1ecb th\u00f4ng b\u00e1o sai m\u1eadt kh\u1ea9u. H\u1ed3 s\u01a1 n\u00e0y c\u0169ng r\u1ea5t d\u1ec5 b\u1ecb l\u1ed7i sau m\u1ed9t b\u1ea3n c\u1eadp nh\u1eadt h\u1ec7 \u0111i\u1ec1u h\u00e0nh.<\/li>\n<li>C\u00e1ch th\u1ef1c hi\u1ec7n: V\u00e0o danh s\u00e1ch Wi-Fi -&gt; B\u1ea5m gi\u1eef (ho\u1eb7c b\u1ea5m bi\u1ec3u t\u01b0\u1ee3ng ch\u1eef i) v\u00e0o t\u00ean m\u1ea1ng \u0111ang l\u1ed7i -&gt; Ch\u1ecdn Qu\u00ean m\u1ea1ng n\u00e0y. Sau \u0111\u00f3, ch\u1ecdn l\u1ea1i t\u00ean m\u1ea1ng v\u00e0 nh\u1eadp m\u1eadt kh\u1ea9u t\u1eeb \u0111\u1ea7u.<\/li>\n<li>L\u01b0u \u00fd v\u1ec1 nh\u1eadp m\u1eadt kh\u1ea9u: H\u00e3y c\u1ea9n tr\u1ecdng v\u1edbi ch\u1eef hoa, ch\u1eef th\u01b0\u1eddng v\u00e0 c\u00e1c k\u00fd t\u1ef1 d\u1ec5 nh\u1ea7m l\u1eabn (s\u1ed1 <code>0<\/code> v\u1edbi ch\u1eef <code>O<\/code>, s\u1ed1 <code>1<\/code> v\u1edbi ch\u1eef <code>l<\/code> vi\u1ebft th\u01b0\u1eddng). H\u00e3y b\u1eadt t\u00ednh n\u0103ng hi\u1ec3n th\u1ecb m\u1eadt kh\u1ea9u khi nh\u1eadp \u0111\u1ec3 ki\u1ec3m tra.<\/li>\n<li>Gi\u1ea3i ph\u00e1p m\u1ea1nh h\u01a1n: N\u1ebfu qu\u00ean m\u1ea1ng v\u1eabn kh\u00f4ng gi\u1ea3i quy\u1ebft \u0111\u01b0\u1ee3c v\u1ea5n \u0111\u1ec1, h\u00e3y ch\u1ecdn \u0110\u1eb7t l\u1ea1i thi\u1ebft l\u1eadp m\u1ea1ng (Reset Network Settings). Thao t\u00e1c n\u00e0y s\u1ebd x\u00f3a to\u00e0n b\u1ed9 h\u1ed3 s\u01a1 Wi-Fi, Bluetooth v\u00e0 c\u1ea5u h\u00ecnh m\u1ea1ng di \u0111\u1ed9ng v\u1ec1 m\u1eb7c \u0111\u1ecbnh. B\u1ea1n s\u1ebd c\u1ea7n nh\u1eadp l\u1ea1i m\u1eadt kh\u1ea9u cho c\u00e1c m\u1ea1ng Wi-Fi \u0111\u00e3 l\u01b0u, nh\u01b0ng d\u1eef li\u1ec7u c\u00e1 nh\u00e2n ho\u00e0n to\u00e0n \u0111\u01b0\u1ee3c gi\u1eef nguy\u00ean. N\u1ebfu b\u1ea1n kh\u00f4ng c\u00f2n nh\u1edb m\u1eadt kh\u1ea9u m\u1ea1ng nh\u00e0, h\u00e3y xem <a href=\"https:\/\/hoanghamobile.com\/tin-tuc\/cach-doi-mat-khau-wifi-bang-dien-thoai\/\">c\u00e1ch \u0111\u1ed5i m\u1eadt kh\u1ea9u WiFi b\u1eb1ng \u0111i\u1ec7n tho\u1ea1i<\/a> \u0111\u1ec3 \u0111\u1eb7t l\u1ea1i m\u1eadt kh\u1ea9u m\u1edbi ngay tr\u00ean trang qu\u1ea3n l\u00fd b\u1ed9 ph\u00e1t.<\/li>\n<\/ul>\n<p><img decoding=\"async\" class=\"size-full wp-image-586528 aligncenter\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/dien-thoai-khong-ket-noi-duoc-wifi-2.jpg\" alt=\"dien-thoai-khong-ket-noi-duoc-wifi-2\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/dien-thoai-khong-ket-noi-duoc-wifi-2.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/dien-thoai-khong-ket-noi-duoc-wifi-2-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/dien-thoai-khong-ket-noi-duoc-wifi-2-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2>Kh\u00f4ng th\u1ea5y t\u00ean m\u1ea1ng nh\u00e0 m\u00ecnh<\/h2>\n<p>N\u1ebfu \u0111i\u1ec7n tho\u1ea1i v\u1eabn qu\u00e9t ra m\u1ea1ng nh\u00e0 h\u00e0ng x\u00f3m nh\u01b0ng ho\u00e0n to\u00e0n kh\u00f4ng th\u1ea5y m\u1ea1ng nh\u00e0 b\u1ea1n, \u0111\u00e2y l\u00e0 ngh\u1ecbch l\u00fd c\u00f3 l\u1eddi gi\u1ea3i r\u1ea5t c\u1ee5 th\u1ec3:<\/p>\n<ul>\n<li>S\u1ef1 l\u1ec7ch b\u0103ng t\u1ea7n: B\u1ed9 ph\u00e1t hi\u1ec7n \u0111\u1ea1i th\u01b0\u1eddng ph\u00e1t tr\u00ean hai b\u0103ng t\u1ea7n: 2.4GHz (\u0111i xa, xuy\u00ean t\u01b0\u1eddng t\u1ed1t, m\u1ecdi thi\u1ebft b\u1ecb \u0111\u1ec1u h\u1ed7 tr\u1ee3) v\u00e0 5GHz (t\u1ed1c \u0111\u1ed9 cao h\u01a1n nh\u01b0ng ph\u1ea1m vi h\u1eb9p h\u01a1n, ch\u1ec9 thi\u1ebft b\u1ecb \u0111\u1eddi m\u1edbi h\u1ed7 tr\u1ee3). N\u1ebfu b\u1ed9 ph\u00e1t nh\u00e0 b\u1ea1n ch\u1ec9 b\u1eadt b\u0103ng t\u1ea7n 5GHz m\u00e0 \u0111i\u1ec7n tho\u1ea1i c\u0169 kh\u00f4ng h\u1ed7 tr\u1ee3, m\u00e1y s\u1ebd kh\u00f4ng th\u1ec3 t\u00ecm th\u1ea5y m\u1ea1ng nh\u00e0 b\u1ea1n.\n<ul>\n<li>C\u00e1ch x\u1eed l\u00fd: \u0110\u0103ng nh\u1eadp trang qu\u1ea3n l\u00fd b\u1ed9 ph\u00e1t Wi-Fi v\u00e0 b\u1eadt song song c\u1ea3 hai b\u0103ng t\u1ea7n 2.4GHz v\u00e0 5GHz.<\/li>\n<\/ul>\n<\/li>\n<li>T\u00ean m\u1ea1ng b\u1ecb \u1ea9n (Hidden SSID): B\u1ed9 ph\u00e1t \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp \u1ea9n t\u00ean m\u1ea1ng ra b\u00ean ngo\u00e0i. V\u1edbi tr\u01b0\u1eddng h\u1ee3p n\u00e0y, b\u1ea1n ph\u1ea3i ch\u1ecdn t\u00ednh n\u0103ng Th\u00eam m\u1ea1ng th\u1ee7 c\u00f4ng tr\u00ean \u0111i\u1ec7n tho\u1ea1i, sau \u0111\u00f3 g\u00f5 ch\u00ednh x\u00e1c t\u1eebng k\u00fd t\u1ef1 t\u00ean m\u1ea1ng v\u00e0 m\u1eadt kh\u1ea9u.<\/li>\n<li>Kho\u1ea3ng c\u00e1ch v\u00e0 v\u1eadt c\u1ea3n: T\u00edn hi\u1ec7u Wi-Fi b\u1ecb suy hao m\u1ea1nh b\u1edfi t\u01b0\u1eddng b\u00ea t\u00f4ng v\u00e0 \u0111\u1ed3 kim lo\u1ea1i. H\u00e3y ti\u1ebfn l\u1ea1i g\u1ea7n b\u1ed9 ph\u00e1t v\u00e0 qu\u00e9t l\u1ea1i; n\u1ebfu \u1edf g\u1ea7n th\u1ea5y m\u1ea1ng th\u00ec v\u1ea5n \u0111\u1ec1 n\u1eb1m \u1edf v\u00f9ng ph\u1ee7 s\u00f3ng ch\u1ee9 kh\u00f4ng ph\u1ea3i do \u0111i\u1ec7n tho\u1ea1i l\u1ed7i.<\/li>\n<li>T\u1ea3i l\u1ea1i ph\u1ea7n thu ph\u00e1t s\u00f3ng: B\u1eadt ch\u1ebf \u0111\u1ed9 m\u00e1y bay trong 10 gi\u00e2y r\u1ed3i t\u1eaft \u0111i. Thao t\u00e1c n\u00e0y bu\u1ed9c \u0111i\u1ec7n tho\u1ea1i ph\u1ea3i l\u00e0m t\u01b0\u01a1i (refresh) to\u00e0n b\u1ed9 b\u1ed9 vi x\u1eed l\u00fd s\u00f3ng v\u00e0 qu\u00e9t l\u1ea1i m\u1ea1ng t\u1eeb \u0111\u1ea7u.<\/li>\n<\/ul>\n<p><img decoding=\"async\" class=\"size-full wp-image-586529 aligncenter\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/dien-thoai-khong-ket-noi-duoc-wifi-3.jpg\" alt=\"dien-thoai-khong-ket-noi-duoc-wifi-3\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/dien-thoai-khong-ket-noi-duoc-wifi-3.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/dien-thoai-khong-ket-noi-duoc-wifi-3-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/dien-thoai-khong-ket-noi-duoc-wifi-3-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2>K\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c nh\u01b0ng kh\u00f4ng v\u00e0o \u0111\u01b0\u1ee3c m\u1ea1ng<\/h2>\n<p>\u0110\u00e2y l\u00e0 tr\u1ea1ng th\u00e1i hi\u1ec3n th\u1ecb bi\u1ec3u t\u01b0\u1ee3ng Wi-Fi k\u00e8m d\u1ea5u ch\u1ea5m than ho\u1eb7c th\u00f4ng b\u00e1o &#8220;Kh\u00f4ng c\u00f3 k\u1ebft n\u1ed1i Internet&#8221;:<\/p>\n<ol>\n<li>Kh\u1edfi \u0111\u1ed9ng l\u1ea1i b\u1ed9 ph\u00e1t Wi-Fi: R\u00fat ph\u00edch c\u1eafm \u0111i\u1ec7n b\u1ed9 ph\u00e1t, ch\u1edd 30 gi\u00e2y r\u1ed3i c\u1eafm l\u1ea1i. B\u1ed9 ph\u00e1t v\u1eadn h\u00e0nh li\u00ean t\u1ee5c d\u1ec5 t\u00edch t\u1ee5 b\u1ed9 nh\u1edb \u0111\u1ec7m l\u1ed7i, v\u00e0 vi\u1ec7c ng\u1eaft \u0111i\u1ec7n ng\u1eafn s\u1ebd x\u00f3a s\u1ea1ch c\u00e1c l\u1ed7i t\u1ea1m th\u1eddi n\u00e0y.<\/li>\n<li>Ki\u1ec3m tra thi\u1ebft b\u1ecb kh\u00e1c: N\u1ebfu \u0111i\u1ec7n tho\u1ea1i c\u1ee7a ng\u01b0\u1eddi kh\u00e1c c\u0169ng xu\u1ea5t hi\u1ec7n d\u1ea5u ch\u1ea5m than, s\u1ef1 c\u1ed1 ch\u1eafc ch\u1eafn n\u1eb1m \u1edf \u0111\u01b0\u1eddng truy\u1ec1n nh\u00e0 m\u1ea1ng \u2014 h\u00e3y ki\u1ec3m tra \u0111\u00e8n b\u00e1o tr\u00ean b\u1ed9 ph\u00e1t ho\u1eb7c li\u00ean h\u1ec7 t\u1ed5ng \u0111\u00e0i h\u1ed7 tr\u1ee3.<\/li>\n<li>\u0110\u1eb7t l\u1ea1i thi\u1ebft l\u1eadp m\u1ea1ng tr\u00ean \u0111i\u1ec7n tho\u1ea1i: \u00c1p d\u1ee5ng n\u1ebfu ch\u1ec9 duy nh\u1ea5t m\u00e1y b\u1ea1n b\u1ecb l\u1ed7i. \u0110i\u1ec7n tho\u1ea1i c\u00f3 th\u1ec3 \u0111ang gi\u1eef m\u1ed9t \u0111\u1ecba ch\u1ec9 IP c\u0169 kh\u00f4ng c\u00f2n h\u1ee3p l\u1ec7 trong m\u1ea1ng.<\/li>\n<li>Ki\u1ec3m tra ng\u00e0y gi\u1edd h\u1ec7 th\u1ed1ng: K\u1ebft n\u1ed1i t\u1edbi c\u00e1c trang web b\u1ea3o m\u1eadt y\u00eau c\u1ea7u ch\u1ee9ng ch\u1ec9 s\u1ed1 c\u00f2n hi\u1ec7u l\u1ef1c. \u0110i\u1ec7n tho\u1ea1i s\u1ebd \u0111\u1ed1i chi\u1ebfu th\u1eddi h\u1ea1n n\u00e0y v\u1edbi \u0111\u1ed3ng h\u1ed3 n\u1ed9i b\u1ed9. N\u1ebfu ng\u00e0y gi\u1edd b\u1ecb sai l\u1ec7ch, m\u00e1y s\u1ebd ch\u1eb7n truy c\u1eadp v\u00e0 t\u1ea1o ra tri\u1ec7u ch\u1ee9ng h\u1ec7t nh\u01b0 m\u1ea5t m\u1ea1ng. H\u00e3y b\u1eadt ch\u1ebf \u0111\u1ed9 C\u1eadp nh\u1eadt ng\u00e0y gi\u1edd t\u1ef1 \u0111\u1ed9ng. Ng\u00e0y gi\u1edd l\u1ec7ch c\u0169ng l\u00e0 l\u00fd do quen thu\u1ed9c khi\u1ebfn m\u00e1y b\u00e1o l\u1ed7i khi t\u1ea3i ph\u1ea7n m\u1ec1m, b\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ed1i chi\u1ebfu th\u00eam v\u1edbi c\u00e1c d\u1ea5u hi\u1ec7u trong b\u00e0i <a href=\"https:\/\/hoanghamobile.com\/tin-tuc\/dien-thoai-khong-tai-duoc-ung-dung\/\">\u0111i\u1ec7n tho\u1ea1i kh\u00f4ng t\u1ea3i \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng<\/a>.<\/li>\n<li>X\u1eed l\u00fd Wi-Fi c\u00f4ng c\u1ed9ng: M\u1ea1ng Wi-Fi t\u1ea1i qu\u00e1n c\u00e0 ph\u00ea, kh\u00e1ch s\u1ea1n, s\u00e2n bay th\u01b0\u1eddng y\u00eau c\u1ea7u ng\u01b0\u1eddi d\u00f9ng x\u00e1c th\u1ef1c qua m\u1ed9t trang web ch\u00e0o m\u1eebng. N\u1ebfu trang n\u00e0y kh\u00f4ng t\u1ef1 \u0111\u1ed9ng nh\u1ea3y ra, h\u00e3y m\u1edf tr\u00ecnh duy\u1ec7t web v\u00e0 truy c\u1eadp m\u1ed9t trang b\u1ea5t k\u1ef3 \u0111\u1ec3 k\u00edch ho\u1ea1t trang \u0111\u0103ng nh\u1eadp.<\/li>\n<\/ol>\n<p>N\u1ebfu Wi-Fi nh\u00e0 b\u1ea1n th\u01b0\u1eddng xuy\u00ean ch\u1eadp ch\u1eddn \u1edf nh\u1eefng ph\u00f2ng xa b\u1ed9 ph\u00e1t, v\u1ea5n \u0111\u1ec1 n\u1eb1m \u1edf v\u00f9ng ph\u1ee7 s\u00f3ng ch\u1ee9 kh\u00f4ng ph\u1ea3i \u1edf \u0111i\u1ec7n tho\u1ea1i: h\u00e3y d\u1eddi b\u1ed9 ph\u00e1t ra v\u1ecb tr\u00ed cao, tho\u00e1ng v\u00e0 g\u1ea7n gi\u1eefa nh\u00e0 tr\u01b0\u1edbc khi t\u00ednh t\u1edbi vi\u1ec7c l\u1eafp th\u00eam thi\u1ebft b\u1ecb m\u1edf r\u1ed9ng s\u00f3ng.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-586530 aligncenter\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/dien-thoai-khong-ket-noi-duoc-wifi-4.jpg\" alt=\"dien-thoai-khong-ket-noi-duoc-wifi-4\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/dien-thoai-khong-ket-noi-duoc-wifi-4.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/dien-thoai-khong-ket-noi-duoc-wifi-4-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/dien-thoai-khong-ket-noi-duoc-wifi-4-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2>K\u1ebft n\u1ed1i r\u1ed3i t\u1ef1 ng\u1eaft li\u00ean t\u1ee5c<\/h2>\n<p>T\u00ecnh tr\u1ea1ng k\u1ebft n\u1ed1i ch\u1eadp ch\u1eddn &#8220;l\u00fac c\u00f3 l\u00fac m\u1ea5t&#8221; c\u1ef1c k\u1ef3 kh\u00f3 ch\u1ecbu, v\u00e0 nguy\u00ean nh\u00e2n th\u01b0\u1eddng xu\u1ea5t ph\u00e1t t\u1eeb c\u00e1c t\u00ednh n\u0103ng th\u00f4ng minh c\u1ee7a h\u1ec7 \u0111i\u1ec1u h\u00e0nh:<\/p>\n<ul>\n<li>T\u1ef1 \u0111\u1ed9ng chuy\u1ec3n sang d\u1eef li\u1ec7u di \u0111\u1ed9ng (Wi-Fi Assist \/ Switch to mobile data): T\u00ednh n\u0103ng n\u00e0y s\u1ebd t\u1ef1 ng\u1eaft Wi-Fi \u0111\u1ec3 chuy\u1ec3n sang 4G\/5G m\u1ed7i khi s\u00f3ng Wi-Fi h\u01a1i y\u1ebfu. N\u1ebfu b\u1ea1n \u0111\u1ee9ng \u1edf v\u00f9ng ranh gi\u1edbi s\u00f3ng, m\u00e1y s\u1ebd li\u00ean t\u1ee5c nh\u1ea3y qua nh\u1ea3y l\u1ea1i gi\u1eefa hai k\u1ebft n\u1ed1i, g\u00e2y gi\u00e1n \u0111o\u1ea1n m\u1ea1ng. H\u00e3y v\u00e0o c\u00e0i \u0111\u1eb7t Wi-Fi n\u00e2ng cao v\u00e0 t\u1eaft t\u00ednh n\u0103ng n\u00e0y.<\/li>\n<li>T\u00ednh n\u0103ng t\u1ef1 chuy\u1ec3n sang m\u1ea1ng m\u1ea1nh h\u01a1n: T\u01b0\u01a1ng t\u1ef1, n\u1ebfu nh\u00e0 b\u1ea1n l\u1eafp nhi\u1ec1u b\u1ed9 ph\u00e1t Wi-Fi tr\u00f9ng t\u00ean ho\u1eb7c b\u1ed9 m\u1edf r\u1ed9ng s\u00f3ng ch\u1ea5t l\u01b0\u1ee3ng k\u00e9m, m\u00e1y s\u1ebd li\u00ean t\u1ee5c ng\u1eaft n\u1ed1i \u0111\u1ec3 t\u00ecm b\u1ed9 ph\u00e1t t\u1ed1t h\u01a1n.<\/li>\n<li>Ch\u1ebf \u0111\u1ed9 ti\u1ebft ki\u1ec7m pin: \u1ede m\u1ee9c ti\u1ebft ki\u1ec7m pin cao, h\u1ec7 th\u1ed1ng s\u1ebd t\u1ef1 \u0111\u1ed9ng ng\u1eaft Wi-Fi m\u1ed7i khi m\u00e0n h\u00ecnh t\u1eaft \u0111\u1ec3 b\u1ea3o to\u00e0n n\u0103ng l\u01b0\u1ee3ng, khi\u1ebfn b\u1ea1n b\u1ecb tr\u1ec5 th\u00f4ng b\u00e1o v\u00e0 ph\u1ea3i ch\u1edd m\u00e1y n\u1ed1i l\u1ea1i Wi-Fi m\u1ed7i khi m\u1edf kh\u00f3a.<\/li>\n<li>\u1ed0p l\u01b0ng c\u1ea3n s\u00f3ng: C\u00e1c lo\u1ea1i \u1ed1p l\u01b0ng l\u00e0m b\u1eb1ng kim lo\u1ea1i d\u1ea7y ho\u1eb7c c\u00f3 v\u00f2ng t\u1eeb t\u00ednh qu\u00e1 m\u1ea1nh c\u00f3 th\u1ec3 l\u00e0m suy gi\u1ea3m nghi\u00eam tr\u1ecdng kh\u1ea3 n\u0103ng b\u1eaft s\u00f3ng Wi-Fi c\u1ee7a anten ng\u1ea7m b\u00ean trong m\u00e1y.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-586531 aligncenter\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/dien-thoai-khong-ket-noi-duoc-wifi-5.jpg\" alt=\"dien-thoai-khong-ket-noi-duoc-wifi-5\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/dien-thoai-khong-ket-noi-duoc-wifi-5.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/dien-thoai-khong-ket-noi-duoc-wifi-5-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/dien-thoai-khong-ket-noi-duoc-wifi-5-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2>Khi n\u00e0o l\u00e0 l\u1ed7i ph\u1ea7n c\u1ee9ng<\/h2>\n<p>Linh ki\u1ec7n Wi-Fi r\u1ea5t hi\u1ebfm khi h\u1ecfng ri\u00eang l\u1ebb, nh\u01b0ng b\u1ea1n c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh l\u1ed7i ph\u1ea7n c\u1ee9ng n\u1ebfu g\u1eb7p c\u00e1c d\u1ea5u hi\u1ec7u sau:<\/p>\n<ul>\n<li>C\u00f4ng t\u1eafc b\u1eadt\/t\u1eaft Wi-Fi trong C\u00e0i \u0111\u1eb7t b\u1ecb m\u1edd (kh\u00f4ng g\u1ea1t \u0111\u01b0\u1ee3c) ho\u1eb7c t\u1ef1 \u0111\u1ed9ng nh\u1ea3y v\u1ec1 tr\u1ea1ng th\u00e1i T\u1eaft ngay sau khi b\u1eadt.<\/li>\n<li>M\u00e1y ho\u00e0n to\u00e0n kh\u00f4ng qu\u00e9t ra b\u1ea5t k\u1ef3 m\u1ea1ng Wi-Fi n\u00e0o, k\u1ec3 c\u1ea3 khi \u0111\u1eb7t \u0111i\u1ec7n tho\u1ea1i s\u00e1t ngay c\u1ea1nh b\u1ed9 ph\u00e1t.<\/li>\n<li>T\u00ecnh tr\u1ea1ng m\u1ea5t Wi-Fi xu\u1ea5t hi\u1ec7n ngay sau khi m\u00e1y ch\u1ecbu va \u0111\u1eadp m\u1ea1nh ho\u1eb7c b\u1ecb d\u00ednh n\u01b0\u1edbc v\u00e0 kh\u00f4ng h\u1ed3i ph\u1ee5c sau khi \u0111\u00e3 s\u1ea5y kh\u00f4.<\/li>\n<li>S\u1ef1 c\u1ed1 v\u1eabn ti\u1ebfp di\u1ec5n sau khi b\u1ea1n \u0111\u00e3 th\u1ef1c hi\u1ec7n \u0110\u1eb7t l\u1ea1i thi\u1ebft l\u1eadp m\u1ea1ng v\u00e0 Kh\u00f4i ph\u1ee5c c\u00e0i \u0111\u1eb7t g\u1ed1c (Factory Reset).<\/li>\n<\/ul>\n<p>Ph\u00e9p th\u1eed cu\u1ed1i c\u00f9ng: H\u00e3y ph\u00e1t Wi-Fi t\u1eeb m\u1ed9t chi\u1ebfc \u0111i\u1ec7n tho\u1ea1i kh\u00e1c (Mobile Hotspot) v\u00e0 th\u1eed k\u1ebft n\u1ed1i \u0111i\u1ec7n tho\u1ea1i l\u1ed7i v\u00e0o \u0111\u00f3. N\u1ebfu m\u00e1y k\u1ebft n\u1ed1i v\u00e0 v\u00e0o m\u1ea1ng b\u00ecnh th\u01b0\u1eddng, ph\u1ea7n c\u1ee9ng Wi-Fi c\u1ee7a \u0111i\u1ec7n tho\u1ea1i ho\u00e0n to\u00e0n kh\u1ecfe m\u1ea1nh \u2014 s\u1ef1 c\u1ed1 ch\u1eafc ch\u1eafn n\u1eb1m \u1edf thi\u1ebft l\u1eadp c\u1ee7a b\u1ed9 ph\u00e1t Wi-Fi nh\u00e0 b\u1ea1n. M\u1ed9t d\u1ea5u hi\u1ec7u b\u1ed5 sung \u0111\u00e1ng ch\u00fa \u00fd: n\u1ebfu Bluetooth tr\u00ean m\u00e1y c\u0169ng tr\u1ee5c tr\u1eb7c c\u00f9ng l\u00fac th\u00ec kh\u1ea3 n\u0103ng cao chip thu ph\u00e1t s\u00f3ng d\u00f9ng chung \u0111ang c\u00f3 v\u1ea5n \u0111\u1ec1, b\u1ea1n n\u00ean soi th\u00eam c\u00e1c tri\u1ec7u ch\u1ee9ng trong b\u00e0i <a href=\"https:\/\/hoanghamobile.com\/tin-tuc\/bluetooth-khong-ket-noi\/\">Bluetooth kh\u00f4ng k\u1ebft n\u1ed1i<\/a>.<\/p>\n<p><strong>Xem th\u00eam: <a href=\"https:\/\/hoanghamobile.com\/tin-tuc\/dien-thoai-mat-song\/\">\u0110i\u1ec7n tho\u1ea1i m\u1ea5t s\u00f3ng: nguy\u00ean nh\u00e2n v\u00e0 8 b\u01b0\u1edbc kh\u1eafc ph\u1ee5c<\/a><\/strong><\/p>\n<h2>S\u00e1u hi\u1ec3u l\u1ea7m ph\u1ed5 bi\u1ebfn<\/h2>\n<ol>\n<li>&#8220;M\u00e1y b\u00e1o sai m\u1eadt kh\u1ea9u ngh\u0129a l\u00e0 do m\u00ecnh nh\u1edb nh\u1ea7m&#8221;: Sai. Ph\u1ea7n l\u1edbn nguy\u00ean nh\u00e2n do h\u1ed3 s\u01a1 m\u1ea1ng l\u01b0u tr\u00ean m\u00e1y b\u1ecb xung \u0111\u1ed9t v\u1edbi thi\u1ebft l\u1eadp m\u1edbi c\u1ee7a b\u1ed9 ph\u00e1t. Ch\u1ec9 c\u1ea7n ch\u1ecdn &#8220;Qu\u00ean m\u1ea1ng&#8221; v\u00e0 nh\u1eadp l\u1ea1i l\u00e0 xong.<\/li>\n<li>&#8220;Kh\u00f4ng th\u1ea5y m\u1ea1ng nh\u00e0 m\u00ecnh ngh\u0129a l\u00e0 b\u1ed9 ph\u00e1t \u0111\u00e3 h\u1ecfng&#8221;: Sai. N\u1ebfu m\u00e1y v\u1eabn b\u1eaft \u0111\u01b0\u1ee3c Wi-Fi nh\u00e0 h\u00e0ng x\u00f3m th\u00ec b\u1ed9 thu Wi-Fi c\u1ee7a \u0111i\u1ec7n tho\u1ea1i ho\u00e0n to\u00e0n t\u1ed1t. H\u00e3y ki\u1ec3m tra l\u1ea1i b\u0103ng t\u1ea7n (2.4GHz\/5GHz) ho\u1eb7c xem t\u00ean m\u1ea1ng c\u00f3 b\u1ecb \u1ea9n kh\u00f4ng.<\/li>\n<li>&#8220;\u0110\u1eb7t l\u1ea1i thi\u1ebft l\u1eadp m\u1ea1ng s\u1ebd l\u00e0m m\u1ea5t h\u1ebft d\u1eef li\u1ec7u&#8221;: Sai. Thao t\u00e1c n\u00e0y ch\u1ec9 x\u00f3a m\u1eadt kh\u1ea9u Wi-Fi, thi\u1ebft b\u1ecb Bluetooth \u0111\u00e3 gh\u00e9p n\u1ed1i v\u00e0 c\u1ea5u h\u00ecnh m\u1ea1ng. H\u00ecnh \u1ea3nh, tin nh\u1eafn, \u1ee9ng d\u1ee5ng ho\u00e0n to\u00e0n kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng.<\/li>\n<li>&#8220;S\u00f3ng Wi-Fi y\u1ebfu th\u00ec n\u00ean \u0111\u1ed5i \u0111i\u1ec7n tho\u1ea1i m\u1edbi&#8221;: Sai. B\u1ea1n n\u00ean \u0111o t\u1ed1c \u0111\u1ed9 Wi-Fi \u1edf nhi\u1ec1u v\u1ecb tr\u00ed kh\u00e1c nhau. N\u1ebfu \u1edf g\u1ea7n b\u1ed9 ph\u00e1t m\u1ea1ng v\u1eabn m\u1ea1nh th\u00ec v\u1ea5n \u0111\u1ec1 n\u1eb1m \u1edf kho\u1ea3ng c\u00e1ch v\u00e0 g\u00f3c ch\u1ebft s\u00f3ng trong nh\u00e0, \u0111\u1ed5i \u0111i\u1ec7n tho\u1ea1i m\u1edbi kh\u00f4ng gi\u1ea3i quy\u1ebft \u0111\u01b0\u1ee3c g\u1ed1c r\u1ec5.<\/li>\n<li>&#8220;Ng\u00e0y gi\u1edd sai th\u00ec ch\u1ec9 \u1ea3nh h\u01b0\u1edfng t\u1edbi vi\u1ec7c xem gi\u1edd&#8221;: Sai. Ng\u00e0y gi\u1edd sai l\u00e0m h\u1ecfng qu\u00e1 tr\u00ecnh x\u00e1c th\u1ef1c ch\u1ee9ng ch\u1ec9 b\u1ea3o m\u1eadt SSL, khi\u1ebfn m\u00e1y ng\u0103n c\u1ea3n truy c\u1eadp internet d\u00f9 bi\u1ec3u t\u01b0\u1ee3ng Wi-Fi v\u1eabn b\u00e1o \u0111\u00e3 k\u1ebft n\u1ed1i.<\/li>\n<li>&#8220;Bi\u1ec3u t\u01b0\u1ee3ng Wi-Fi s\u00e1ng ngh\u0129a l\u00e0 m\u1ea1ng \u0111\u00e3 t\u1ed1t&#8221;: Sai. K\u1ebft n\u1ed1i t\u1edbi router Wi-Fi v\u00e0 router ra \u0111\u01b0\u1ee3c Internet l\u00e0 hai ch\u1eb7ng ri\u00eang bi\u1ec7t. D\u1ea5u ch\u1ea5m than hi\u1ec7n l\u00ean bi\u1ec3u t\u01b0\u1ee3ng Wi-Fi ngh\u0129a l\u00e0 ch\u1eb7ng th\u1ee9 hai \u0111ang b\u1ecb gi\u00e1n \u0111o\u1ea1n.<\/li>\n<\/ol>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-586532 aligncenter\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/dien-thoai-khong-ket-noi-duoc-wifi-6.jpg\" alt=\"dien-thoai-khong-ket-noi-duoc-wifi-6\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/dien-thoai-khong-ket-noi-duoc-wifi-6.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/dien-thoai-khong-ket-noi-duoc-wifi-6-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/dien-thoai-khong-ket-noi-duoc-wifi-6-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2>Checklist 8 b\u01b0\u1edbc ch\u1ea9n \u0111o\u00e1n nhanh<\/h2>\n<p>H\u00e3y th\u1ef1c hi\u1ec7n l\u1ea7n l\u01b0\u1ee3t theo \u0111\u00fang th\u1ee9 t\u1ef1 t\u1eeb \u0111\u01a1n gi\u1ea3n \u0111\u1ebfn ph\u1ee9c t\u1ea1p sau \u0111\u00e2y:<\/p>\n<ul>\n<li>B\u01b0\u1edbc 1: Th\u1eed m\u1ed9t thi\u1ebft b\u1ecb kh\u00e1c tr\u00ean c\u00f9ng m\u1ea1ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh l\u1ed7i thu\u1ed9c v\u1ec1 \u0111i\u1ec7n tho\u1ea1i hay b\u1ed9 ph\u00e1t.<\/li>\n<li>B\u01b0\u1edbc 2: B\u1eadt\/t\u1eaft Ch\u1ebf \u0111\u1ed9 m\u00e1y bay \u0111\u1ec3 l\u00e0m t\u01b0\u01a1i l\u1ea1i to\u00e0n b\u1ed9 b\u1ed9 thu ph\u00e1t s\u00f3ng tr\u00ean m\u00e1y.<\/li>\n<li>B\u01b0\u1edbc 3: B\u1ea5m Qu\u00ean m\u1ea1ng Wi-Fi \u0111ang b\u1ecb l\u1ed7i r\u1ed3i ti\u1ebfn h\u00e0nh k\u1ebft n\u1ed1i v\u00e0 nh\u1eadp l\u1ea1i m\u1eadt kh\u1ea9u.<\/li>\n<li>B\u01b0\u1edbc 4: R\u00fat ph\u00edch c\u1eafm ngu\u1ed3n b\u1ed9 ph\u00e1t Wi-Fi, ch\u1edd 30 gi\u00e2y r\u1ed3i c\u1eafm l\u1ea1i.<\/li>\n<li>B\u01b0\u1edbc 5: N\u1ebfu kh\u00f4ng th\u1ea5y t\u00ean m\u1ea1ng, truy c\u1eadp trang qu\u1ea3n l\u00fd b\u1ed9 ph\u00e1t v\u00e0 b\u1eadt b\u0103ng t\u1ea7n 2.4GHz ph\u1ed5 th\u00f4ng.<\/li>\n<li>B\u01b0\u1edbc 6: Ki\u1ec3m tra c\u00e0i \u0111\u1eb7t Ng\u00e0y &amp; Gi\u1edd, b\u1eadt ch\u1ebf \u0111\u1ed9 c\u1eadp nh\u1eadt ng\u00e0y gi\u1edd t\u1ef1 \u0111\u1ed9ng qua m\u1ea1ng.<\/li>\n<li>B\u01b0\u1edbc 7: T\u1eaft t\u00f9y ch\u1ecdn t\u1ef1 \u0111\u1ed9ng chuy\u1ec3n sang d\u1eef li\u1ec7u di \u0111\u1ed9ng (Wi-Fi Assist) trong ph\u1ea7n c\u00e0i \u0111\u1eb7t Wi-Fi.<\/li>\n<li>B\u01b0\u1edbc 8: Th\u1ef1c hi\u1ec7n \u0110\u1eb7t l\u1ea1i thi\u1ebft l\u1eadp m\u1ea1ng. N\u1ebfu v\u1eabn kh\u00f4ng \u0111\u01b0\u1ee3c, h\u00e3y th\u1eed k\u1ebft n\u1ed1i m\u00e1y v\u1edbi m\u1ed9t m\u1ea1ng Wi-Fi kh\u00e1c \u0111\u1ec3 ki\u1ec3m tra ph\u1ea7n c\u1ee9ng.<\/li>\n<\/ul>\n<h2>C\u00e1ch d\u00f9ng gi\u00fap Wi-Fi \u1ed5n \u0111\u1ecbnh l\u00e2u d\u00e0i<\/h2>\n<ul>\n<li>B\u1eadt song song hai b\u0103ng t\u1ea7n: Thi\u1ebft l\u1eadp b\u1ed9 ph\u00e1t Wi-Fi ph\u00e1t \u0111\u1ed3ng th\u1eddi c\u1ea3 hai d\u1ea3i t\u1ea7n 2.4GHz v\u00e0 5GHz \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o m\u1ecdi thi\u1ebft b\u1ecb (m\u1edbi v\u00e0 c\u0169) \u0111\u1ec1u truy c\u1eadp m\u01b0\u1ee3t m\u00e0.<\/li>\n<li>L\u1ef1a ch\u1ecdn v\u1ecb tr\u00ed \u0111\u1eb7t b\u1ed9 ph\u00e1t: \u0110\u1eb7t router \u1edf v\u1ecb tr\u00ed trung t\u00e2m, tr\u00ean cao v\u00e0 tho\u00e1ng \u0111\u00e3ng. Tr\u00e1nh \u0111\u1eb7t trong t\u1ee7 k\u00edn, sau tivi ho\u1eb7c g\u1ea7n c\u00e1c thi\u1ebft b\u1ecb kim lo\u1ea1i l\u00e0m c\u1ea3n s\u00f3ng.<\/li>\n<li>\u0110\u1eb7t t\u00ean m\u1ea1ng v\u00e0 m\u1eadt kh\u1ea9u chu\u1ea9n chu\u1ea9n m\u1ef1c: S\u1eed d\u1ee5ng k\u00fd t\u1ef1 ch\u1eef v\u00e0 s\u1ed1 kh\u00f4ng d\u1ea5u, tr\u00e1nh d\u00f9ng c\u00e1c k\u00fd t\u1ef1 \u0111\u1eb7c bi\u1ec7t l\u1ea1 (<code>@<\/code>, <code>#<\/code>, <code>$<\/code>, <code>^<\/code>, ti\u1ebfng Vi\u1ec7t c\u00f3 d\u1ea5u) v\u00ec m\u1ed9t s\u1ed1 d\u00f2ng \u0111i\u1ec7n tho\u1ea1i s\u1ebd x\u1eed l\u00fd sai m\u00e3 h\u00f3a v\u00e0 b\u00e1o sai m\u1eadt kh\u1ea9u.<\/li>\n<li>Kh\u1edfi \u0111\u1ed9ng l\u1ea1i router \u0111\u1ecbnh k\u1ef3: Ch\u1ee7 \u0111\u1ed9ng r\u00fat ngu\u1ed3n b\u1ed9 ph\u00e1t 1 l\u1ea7n\/th\u00e1ng \u0111\u1ec3 l\u00e0m s\u1ea1ch b\u1ed9 nh\u1edb t\u1ea1m v\u00e0 gi\u1ea3i ph\u00f3ng c\u00e1c \u0111\u1ecba ch\u1ec9 IP b\u1ecb k\u1eb9t.<\/li>\n<li>D\u1ecdn d\u1eb9p danh s\u00e1ch Wi-Fi \u0111\u00e3 l\u01b0u: \u0110\u1ecbnh k\u1ef3 x\u00f3a b\u1edbt c\u00e1c m\u1ea1ng Wi-Fi c\u00f4ng c\u1ed9ng c\u0169 kh\u00f4ng c\u00f2n s\u1eed d\u1ee5ng \u0111\u1ec3 tr\u00e1nh vi\u1ec7c \u0111i\u1ec7n tho\u1ea1i \u00e2m th\u1ea7m t\u1ef1 k\u1ebft n\u1ed1i v\u00e0o c\u00e1c m\u1ea1ng y\u1ebfu xung quanh.<\/li>\n<li>Lu\u00f4n b\u1eadt t\u1ef1 \u0111\u1ed9ng c\u1eadp nh\u1eadt ng\u00e0y gi\u1edd: Gi\u00fap ng\u0103n ng\u1eeba tri\u1ec7t \u0111\u1ec3 c\u00e1c l\u1ed7i x\u00e1c th\u1ef1c ch\u1ee9ng ch\u1ec9 b\u1ea3o m\u1eadt h\u1ec7 th\u1ed1ng.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-586533 aligncenter\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/dien-thoai-khong-ket-noi-duoc-wifi-7.jpg\" alt=\"dien-thoai-khong-ket-noi-duoc-wifi-7\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/dien-thoai-khong-ket-noi-duoc-wifi-7.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/dien-thoai-khong-ket-noi-duoc-wifi-7-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/08\/dien-thoai-khong-ket-noi-duoc-wifi-7-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n<h3>V\u00ec sao m\u00e1y b\u00e1o sai m\u1eadt kh\u1ea9u d\u00f9 t\u00f4i nh\u1eadp \u0111\u00fang?<\/h3>\n<p>Th\u01b0\u1eddng do h\u1ed3 s\u01a1 m\u1ea1ng \u0111\u00e3 l\u01b0u trong m\u00e1y b\u1ecb l\u1ed7i, kh\u00f4ng ph\u1ea3i b\u1ea1n nh\u1edb nh\u1ea7m. H\u00e3y b\u1ea5m gi\u1eef v\u00e0o t\u00ean m\u1ea1ng, ch\u1ecdn qu\u00ean m\u1ea1ng, r\u1ed3i k\u1ebft n\u1ed1i l\u1ea1i t\u1eeb \u0111\u1ea7u v\u00e0 nh\u1eadp m\u1eadt kh\u1ea9u m\u1edbi.<\/p>\n<h3>Qu\u00ean m\u1ea1ng r\u1ed3i k\u1ebft n\u1ed1i l\u1ea1i c\u00f3 m\u1ea5t g\u00ec kh\u00f4ng?<\/h3>\n<p>Kh\u00f4ng, b\u1ea1n ch\u1ec9 c\u1ea7n nh\u1eadp l\u1ea1i m\u1eadt kh\u1ea9u c\u1ee7a \u0111\u00fang m\u1ea1ng \u0111\u00f3. \u0110\u00e2y l\u00e0 thao t\u00e1c nh\u1eb9 nh\u00e0ng v\u00e0 hi\u1ec7u qu\u1ea3 nh\u1ea5t cho nh\u00f3m l\u1ed7i b\u00e1o sai m\u1eadt kh\u1ea9u.<\/p>\n<h3>V\u00ec sao th\u1ea5y m\u1ea1ng h\u00e0ng x\u00f3m m\u00e0 kh\u00f4ng th\u1ea5y m\u1ea1ng nh\u00e0 m\u00ecnh?<\/h3>\n<p>Th\u01b0\u1eddng v\u00ec b\u1ed9 ph\u00e1t nh\u00e0 b\u1ea1n ch\u1ec9 ph\u00e1t tr\u00ean b\u0103ng t\u1ea7n m\u1edbi m\u00e0 m\u00e1y b\u1ea1n kh\u00f4ng h\u1ed7 tr\u1ee3. H\u00e3y \u0111\u0103ng nh\u1eadp trang qu\u1ea3n l\u00fd b\u1ed9 ph\u00e1t v\u00e0 b\u1eadt b\u0103ng t\u1ea7n ph\u1ed5 th\u00f4ng, t\u1ed1t nh\u1ea5t l\u00e0 ch\u1ea1y song song c\u1ea3 hai.<\/p>\n<h3>Bi\u1ec3u t\u01b0\u1ee3ng WiFi c\u00f3 d\u1ea5u ch\u1ea5m than ngh\u0129a l\u00e0 g\u00ec?<\/h3>\n<p>M\u00e1y \u0111\u00e3 k\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c v\u1edbi b\u1ed9 ph\u00e1t nh\u01b0ng kh\u00f4ng ra \u0111\u01b0\u1ee3c internet. H\u00e3y kh\u1edfi \u0111\u1ed9ng l\u1ea1i b\u1ed9 ph\u00e1t b\u1eb1ng c\u00e1ch r\u00fat \u0111i\u1ec7n ba m\u01b0\u01a1i gi\u00e2y, v\u00e0 ki\u1ec3m tra c\u00e1c thi\u1ebft b\u1ecb kh\u00e1c trong nh\u00e0 c\u00f3 v\u00e0o \u0111\u01b0\u1ee3c kh\u00f4ng.<\/p>\n<h3>\u0110\u1eb7t l\u1ea1i thi\u1ebft l\u1eadp m\u1ea1ng c\u00f3 m\u1ea5t d\u1eef li\u1ec7u kh\u00f4ng?<\/h3>\n<p>Kh\u00f4ng. B\u1ea1n ch\u1ec9 ph\u1ea3i nh\u1eadp l\u1ea1i m\u1eadt kh\u1ea9u c\u00e1c m\u1ea1ng WiFi \u0111\u00e3 l\u01b0u v\u00e0 gh\u00e9p n\u1ed1i l\u1ea1i thi\u1ebft b\u1ecb Bluetooth; \u1ea3nh, tin nh\u1eafn v\u00e0 \u1ee9ng d\u1ee5ng ho\u00e0n to\u00e0n kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng.<\/p>\n<h3>Ng\u00e0y gi\u1edd sai th\u00ec li\u00ean quan g\u00ec t\u1edbi WiFi?<\/h3>\n<p>C\u00e1c trang web \u0111\u01b0\u1ee3c b\u1ea3o m\u1eadt b\u1eb1ng ch\u1ee9ng ch\u1ec9 c\u00f3 th\u1eddi h\u1ea1n, v\u00e0 m\u00e1y \u0111\u1ed1i chi\u1ebfu th\u1eddi h\u1ea1n \u0111\u00f3 v\u1edbi \u0111\u1ed3ng h\u1ed3 n\u1ed9i b\u1ed9. N\u1ebfu ng\u00e0y gi\u1edd l\u1ec7ch qu\u00e1 xa, m\u00e1y t\u1eeb ch\u1ed1i k\u1ebft n\u1ed1i v\u00e0 b\u1ea1n th\u1ea5y h\u1ec7t nh\u01b0 l\u1ed7i m\u1ea1ng. H\u00e3y b\u1eadt l\u1ea5y gi\u1edd t\u1ef1 \u0111\u1ed9ng.<\/p>\n<h3>M\u00e1y k\u1ebft n\u1ed1i r\u1ed3i t\u1ef1 ng\u1eaft li\u00ean t\u1ee5c l\u00e0 v\u00ec sao?<\/h3>\n<p>Th\u01b0\u1eddng do t\u00ednh n\u0103ng t\u1ef1 chuy\u1ec3n sang d\u1eef li\u1ec7u di \u0111\u1ed9ng khi WiFi y\u1ebfu &#8211; m\u00e1y li\u00ean t\u1ee5c nh\u1ea3y qua l\u1ea1i gi\u1eefa hai k\u1ebft n\u1ed1i. H\u00e3y t\u00ecm t\u00f9y ch\u1ecdn n\u00e0y trong c\u00e0i \u0111\u1eb7t WiFi n\u00e2ng cao v\u00e0 t\u1eaft \u0111i \u0111\u1ec3 th\u1eed.<\/p>\n<h3>WiFi c\u00f4ng c\u1ed9ng k\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c m\u00e0 kh\u00f4ng v\u00e0o \u0111\u01b0\u1ee3c m\u1ea1ng?<\/h3>\n<p>Nhi\u1ec1u m\u1ea1ng c\u00f4ng c\u1ed9ng y\u00eau c\u1ea7u b\u1ea1n qua m\u1ed9t trang \u0111\u0103ng nh\u1eadp tr\u01b0\u1edbc. N\u1ebfu trang n\u00e0y kh\u00f4ng t\u1ef1 hi\u1ec7n, h\u00e3y m\u1edf tr\u00ecnh duy\u1ec7t v\u00e0 truy c\u1eadp m\u1ed9t trang b\u1ea5t k\u1ef3 &#8211; trang \u0111\u0103ng nh\u1eadp th\u01b0\u1eddng s\u1ebd hi\u1ec7n ra.<\/p>\n<h3>L\u00e0m sao bi\u1ebft l\u1ed7i \u1edf m\u00e1y hay \u1edf m\u1ea1ng?<\/h3>\n<p>Th\u1eed m\u1ed9t thi\u1ebft b\u1ecb kh\u00e1c tr\u00ean c\u00f9ng m\u1ea1ng: n\u1ebfu n\u00f3 c\u0169ng kh\u00f4ng v\u00e0o \u0111\u01b0\u1ee3c th\u00ec v\u1ea5n \u0111\u1ec1 \u1edf b\u1ed9 ph\u00e1t ho\u1eb7c \u0111\u01b0\u1eddng truy\u1ec1n. Ng\u01b0\u1ee3c l\u1ea1i, th\u1eed m\u00e1y b\u1ea1n tr\u00ean m\u1ed9t m\u1ea1ng kh\u00e1c &#8211; v\u00e0o \u0111\u01b0\u1ee3c ngh\u0129a l\u00e0 ph\u1ea7n c\u1ee9ng WiFi c\u1ee7a m\u00e1y v\u1eabn t\u1ed1t.<\/p>\n<h3>\u1ed0p l\u01b0ng c\u00f3 \u1ea3nh h\u01b0\u1edfng s\u00f3ng WiFi kh\u00f4ng?<\/h3>\n<p>C\u00f3 v\u1edbi m\u1ed9t s\u1ed1 m\u00e1y, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u1ed1p kim lo\u1ea1i d\u00e0y. N\u1ebfu b\u1ea1n d\u00f9ng lo\u1ea1i n\u00e0y v\u00e0 th\u1ea5y s\u00f3ng y\u1ebfu b\u1ea5t th\u01b0\u1eddng, h\u00e3y th\u00e1o ra th\u1eed \u0111\u1ec3 so s\u00e1nh.<\/p>\n<h3>M\u00e1y v\u1eabn kh\u00f4ng v\u00e0o \u0111\u01b0\u1ee3c sau khi kh\u00f4i ph\u1ee5c c\u00e0i \u0111\u1eb7t g\u1ed1c?<\/h3>\n<p>L\u00fac n\u00e0y ph\u1ea7n m\u1ec1m \u0111\u00e3 \u0111\u01b0\u1ee3c lo\u1ea1i tr\u1eeb ho\u00e0n to\u00e0n. H\u00e3y th\u1eed m\u00e1y tr\u00ean m\u1ed9t m\u1ea1ng kh\u00e1c \u0111\u1ec3 x\u00e1c nh\u1eadn, r\u1ed3i mang \u0111i ki\u1ec3m tra ph\u1ea7n c\u1ee9ng n\u1ebfu v\u1eabn kh\u00f4ng \u0111\u01b0\u1ee3c.<\/p>\n<h3>N\u00ean \u0111\u1eb7t t\u00ean m\u1ea1ng WiFi th\u1ebf n\u00e0o?<\/h3>\n<p>N\u00ean d\u00f9ng ch\u1eef kh\u00f4ng d\u1ea5u v\u00e0 tr\u00e1nh k\u00fd t\u1ef1 \u0111\u1eb7c bi\u1ec7t l\u1ea1, c\u1ea3 cho t\u00ean m\u1ea1ng l\u1eabn m\u1eadt kh\u1ea9u. M\u1ed9t s\u1ed1 thi\u1ebft b\u1ecb x\u1eed l\u00fd sai c\u00e1c k\u00fd t\u1ef1 n\u00e0y v\u00e0 b\u00e1o sai m\u1eadt kh\u1ea9u d\u00f9 b\u1ea1n nh\u1eadp ho\u00e0n to\u00e0n \u0111\u00fang.<\/p>\n<h2>T\u1ea1m k\u1ebft<\/h2>\n<p>\u0110i\u1ec1u \u0111\u00e1ng nh\u1edb nh\u1ea5t l\u00e0 h\u00e3y th\u1eed m\u1ed9t thi\u1ebft b\u1ecb kh\u00e1c tr\u01b0\u1edbc khi s\u1eeda m\u00e1y. M\u01b0\u1eddi gi\u00e2y \u0111\u00f3 cho b\u1ea1n bi\u1ebft v\u1ea5n \u0111\u1ec1 n\u1eb1m trong m\u00e1y hay ngo\u00e0i m\u00e1y, v\u00e0 n\u1ebfu l\u00e0 ngo\u00e0i th\u00ec m\u1ecdi thao t\u00e1c \u0111\u1eb7t l\u1ea1i thi\u1ebft l\u1eadp \u0111\u1ec1u v\u00f4 \u00edch.<\/p>\n<p>C\u00f2n n\u1ebfu ch\u1ec9 m\u00ecnh m\u00e1y b\u1ea1n b\u1ecb v\u00e0 n\u00f3 b\u00e1o sai m\u1eadt kh\u1ea9u, h\u00e3y qu\u00ean m\u1ea1ng r\u1ed3i n\u1ed1i l\u1ea1i t\u1eeb \u0111\u1ea7u. H\u1ed3 s\u01a1 m\u1ea1ng l\u01b0u trong m\u00e1y h\u1ecfng l\u00e0 nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn h\u01a1n nhi\u1ec1u so v\u1edbi vi\u1ec7c b\u1ea1n nh\u1edb nh\u1ea7m m\u1eadt kh\u1ea9u, v\u00e0 thao t\u00e1c n\u00e0y gi\u1ea3i quy\u1ebft \u0111\u01b0\u1ee3c ngay m\u00e0 kh\u00f4ng m\u1ea5t g\u00ec.<\/p>\n<p><script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"V\u00ec sao m\u00e1y b\u00e1o sai m\u1eadt kh\u1ea9u d\u00f9 t\u00f4i nh\u1eadp \u0111\u00fang?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Th\u01b0\u1eddng do h\u1ed3 s\u01a1 m\u1ea1ng \u0111\u00e3 l\u01b0u trong m\u00e1y b\u1ecb l\u1ed7i, kh\u00f4ng ph\u1ea3i b\u1ea1n nh\u1edb nh\u1ea7m. H\u00e3y b\u1ea5m gi\u1eef v\u00e0o t\u00ean m\u1ea1ng, ch\u1ecdn qu\u00ean m\u1ea1ng, r\u1ed3i k\u1ebft n\u1ed1i l\u1ea1i t\u1eeb \u0111\u1ea7u v\u00e0 nh\u1eadp m\u1eadt kh\u1ea9u m\u1edbi.\"}}, {\"@type\": \"Question\", \"name\": \"V\u00ec sao th\u1ea5y m\u1ea1ng h\u00e0ng x\u00f3m m\u00e0 kh\u00f4ng th\u1ea5y m\u1ea1ng nh\u00e0 m\u00ecnh?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Th\u01b0\u1eddng v\u00ec b\u1ed9 ph\u00e1t nh\u00e0 b\u1ea1n ch\u1ec9 ph\u00e1t tr\u00ean b\u0103ng t\u1ea7n m\u1edbi m\u00e0 m\u00e1y b\u1ea1n kh\u00f4ng h\u1ed7 tr\u1ee3. H\u00e3y \u0111\u0103ng nh\u1eadp trang qu\u1ea3n l\u00fd b\u1ed9 ph\u00e1t v\u00e0 b\u1eadt b\u0103ng t\u1ea7n ph\u1ed5 th\u00f4ng, t\u1ed1t nh\u1ea5t l\u00e0 ch\u1ea1y song song c\u1ea3 hai.\"}}, {\"@type\": \"Question\", \"name\": \"Bi\u1ec3u t\u01b0\u1ee3ng WiFi c\u00f3 d\u1ea5u ch\u1ea5m than ngh\u0129a l\u00e0 g\u00ec?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"M\u00e1y \u0111\u00e3 k\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c v\u1edbi b\u1ed9 ph\u00e1t nh\u01b0ng kh\u00f4ng ra \u0111\u01b0\u1ee3c internet. H\u00e3y kh\u1edfi \u0111\u1ed9ng l\u1ea1i b\u1ed9 ph\u00e1t b\u1eb1ng c\u00e1ch r\u00fat \u0111i\u1ec7n ba m\u01b0\u01a1i gi\u00e2y, v\u00e0 ki\u1ec3m tra c\u00e1c thi\u1ebft b\u1ecb kh\u00e1c trong nh\u00e0 c\u00f3 v\u00e0o \u0111\u01b0\u1ee3c kh\u00f4ng.\"}}, {\"@type\": \"Question\", \"name\": \"\u0110\u1eb7t l\u1ea1i thi\u1ebft l\u1eadp m\u1ea1ng c\u00f3 m\u1ea5t d\u1eef li\u1ec7u kh\u00f4ng?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Kh\u00f4ng. B\u1ea1n ch\u1ec9 ph\u1ea3i nh\u1eadp l\u1ea1i m\u1eadt kh\u1ea9u c\u00e1c m\u1ea1ng WiFi \u0111\u00e3 l\u01b0u v\u00e0 gh\u00e9p n\u1ed1i l\u1ea1i thi\u1ebft b\u1ecb Bluetooth; \u1ea3nh, tin nh\u1eafn v\u00e0 \u1ee9ng d\u1ee5ng ho\u00e0n to\u00e0n kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng.\"}}, {\"@type\": \"Question\", \"name\": \"Ng\u00e0y gi\u1edd sai th\u00ec li\u00ean quan g\u00ec t\u1edbi WiFi?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"C\u00e1c trang web \u0111\u01b0\u1ee3c b\u1ea3o m\u1eadt b\u1eb1ng ch\u1ee9ng ch\u1ec9 c\u00f3 th\u1eddi h\u1ea1n, v\u00e0 m\u00e1y \u0111\u1ed1i chi\u1ebfu th\u1eddi h\u1ea1n \u0111\u00f3 v\u1edbi \u0111\u1ed3ng h\u1ed3 n\u1ed9i b\u1ed9. N\u1ebfu ng\u00e0y gi\u1edd l\u1ec7ch qu\u00e1 xa, m\u00e1y t\u1eeb ch\u1ed1i k\u1ebft n\u1ed1i v\u00e0 b\u1ea1n th\u1ea5y h\u1ec7t nh\u01b0 l\u1ed7i m\u1ea1ng. H\u00e3y b\u1eadt l\u1ea5y gi\u1edd t\u1ef1 \u0111\u1ed9ng.\"}}, {\"@type\": \"Question\", \"name\": \"M\u00e1y k\u1ebft n\u1ed1i r\u1ed3i t\u1ef1 ng\u1eaft li\u00ean t\u1ee5c l\u00e0 v\u00ec sao?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Th\u01b0\u1eddng do t\u00ednh n\u0103ng t\u1ef1 chuy\u1ec3n sang d\u1eef li\u1ec7u di \u0111\u1ed9ng khi WiFi y\u1ebfu - m\u00e1y li\u00ean t\u1ee5c nh\u1ea3y qua l\u1ea1i gi\u1eefa hai k\u1ebft n\u1ed1i. H\u00e3y t\u00ecm t\u00f9y ch\u1ecdn n\u00e0y trong c\u00e0i \u0111\u1eb7t WiFi n\u00e2ng cao v\u00e0 t\u1eaft \u0111i \u0111\u1ec3 th\u1eed.\"}}]}<\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0110i\u1ec7n tho\u1ea1i kh\u00f4ng k\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c Wi-Fi c\u00f3 m\u1ed9t ph\u00e9p th\u1eed ph\u00e2n lo\u1ea1i m\u00e0 b\u1ea1n n\u00ean l\u00e0m tr\u01b0\u1edbc m\u1ecdi th\u1ee9 kh\u00e1c: h\u1ecfi ng\u01b0\u1eddi b\u00ean c\u1ea1nh xem m\u00e1y h\u1ecd c\u00f3 v\u00e0o m\u1ea1ng \u0111\u01b0\u1ee3c kh\u00f4ng, ho\u1eb7c th\u1eed k\u1ebft n\u1ed1i b\u1eb1ng m\u1ed9t thi\u1ebft b\u1ecb kh\u00e1c trong nh\u00e0. N\u1ebfu m\u1ecdi thi\u1ebft b\u1ecb \u0111\u1ec1u kh\u00f4ng v\u00e0o \u0111\u01b0\u1ee3c, v\u1ea5n \u0111\u1ec1 n\u1eb1m [&hellip;]<\/p>\n","protected":false},"author":65,"featured_media":586526,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"\u0111i\u1ec7n tho\u1ea1i kh\u00f4ng k\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c WiFi","_yoast_wpseo_title":"\u0110i\u1ec7n tho\u1ea1i kh\u00f4ng k\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c WiFi: nguy\u00ean nh\u00e2n v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c","_yoast_wpseo_metadesc":"\u0110i\u1ec7n tho\u1ea1i kh\u00f4ng k\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c WiFi ph\u1ea3i l\u00e0m sao? Nh\u1eadn di\u1ec7n \u0111\u00fang b\u1ed1n t\u00ecnh hu\u1ed1ng l\u1ed7i, c\u00e1ch x\u1eed l\u00fd theo th\u1ee9 t\u1ef1 v\u00e0 khi n\u00e0o m\u1edbi l\u00e0 h\u1ecfng ph\u1ea7n c\u1ee9ng.","footnotes":""},"categories":[16],"tags":[],"class_list":["post-584737","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-thu-thuat"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>\u0110i\u1ec7n tho\u1ea1i kh\u00f4ng k\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c WiFi: nguy\u00ean nh\u00e2n v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c<\/title>\n<meta name=\"description\" content=\"\u0110i\u1ec7n tho\u1ea1i kh\u00f4ng k\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c WiFi ph\u1ea3i l\u00e0m sao? 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