{"id":3992,"date":"2025-07-09T22:32:38","date_gmt":"2025-07-09T22:32:38","guid":{"rendered":"https:\/\/zynoo.com\/blog\/err-connection-reset\/"},"modified":"2026-10-28T16:43:28","modified_gmt":"2026-10-28T16:43:28","slug":"err-connection-reset","status":"publish","type":"post","link":"https:\/\/zynoo.com\/blog\/vi\/err-connection-reset\/","title":{"rendered":"C\u00e1ch kh\u1eafc ph\u1ee5c ERR_CONNECTION_RESET: 7 gi\u1ea3i ph\u00e1p hi\u1ec7u qu\u1ea3"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">ERR_CONNECTION_RESET l\u00e0 l\u1ed7i tr\u00ecnh duy\u1ec7t x\u1ea3y ra khi k\u1ebft n\u1ed1i gi\u1eefa thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n v\u00e0 m\u1ed9t trang web b\u1ecb \u0111\u1eb7t l\u1ea1i \u0111\u1ed9t ng\u1ed9t tr\u01b0\u1edbc khi trang t\u1ea3i xong. L\u1ed7i n\u00e0y th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n tr\u00ean Google Chrome v\u1edbi th\u00f4ng b\u00e1o <strong>&#8220;Kh\u00f4ng th\u1ec3 truy c\u1eadp trang web n\u00e0y. K\u1ebft n\u1ed1i \u0111\u00e3 b\u1ecb \u0111\u1eb7t l\u1ea1i.&#8221;<\/strong><\/p>\n\n<p class=\"wp-block-paragraph\">Nguy\u00ean nh\u00e2n c\u00f3 th\u1ec3 n\u1eb1m \u1edf k\u1ebft n\u1ed1i Internet, c\u00e0i \u0111\u1eb7t tr\u00ecnh duy\u1ec7t, t\u01b0\u1eddng l\u1eeda, VPN ho\u1eb7c m\u00e1y ch\u1ee7 c\u1ee7a trang web. May m\u1eafn l\u00e0 nhi\u1ec1u l\u1ed7i \u0111\u1eb7t l\u1ea1i k\u1ebft n\u1ed1i c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c kh\u1eafc ph\u1ee5c m\u00e0 kh\u00f4ng c\u1ea7n ki\u1ebfn th\u1ee9c k\u1ef9 thu\u1eadt chuy\u00ean s\u00e2u.<\/p>\n\n<p class=\"wp-block-paragraph\">Trong h\u01b0\u1edbng d\u1eabn n\u00e0y, ch\u00fang t\u00f4i s\u1ebd gi\u1ea3i th\u00edch nguy\u00ean nh\u00e2n g\u00e2y ra ERR_CONNECTION_RESET v\u00e0 tr\u00ecnh b\u00e0y b\u1ea3y c\u00e1ch kh\u1eafc ph\u1ee5c thi\u1ebft th\u1ef1c tr\u00ean Windows, macOS v\u00e0 m\u00e1y ch\u1ee7 web.<\/p>\n\n<h2 id=\"h-what-does-err-connection-reset-mean\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"ERR_CONNECTION_RESET_co_nghia_la_gi\"><\/span>ERR_CONNECTION_RESET c\u00f3 ngh\u0129a l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p class=\"wp-block-paragraph\">Khi b\u1ea1n truy c\u1eadp m\u1ed9t trang web, tr\u00ecnh duy\u1ec7t s\u1ebd thi\u1ebft l\u1eadp k\u1ebft n\u1ed1i m\u1ea1ng \u0111\u1ec3 trao \u0111\u1ed5i d\u1eef li\u1ec7u v\u1edbi m\u00e1y ch\u1ee7.<\/p>\n\n<p class=\"wp-block-paragraph\">Th\u00f4ng b\u00e1o ERR_CONNECTION_RESET th\u01b0\u1eddng cho bi\u1ebft m\u1ed9t k\u1ebft n\u1ed1i TCP \u0111\u00e3 b\u1ecb \u0111\u1eb7t l\u1ea1i \u0111\u1ed9t ng\u1ed9t, khi\u1ebfn qu\u00e1 tr\u00ecnh li\u00ean l\u1ea1c kh\u00f4ng th\u1ec3 di\u1ec5n ra b\u00ecnh th\u01b0\u1eddng.<\/p>\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c \u0111\u1eb7t l\u1ea1i k\u1ebft n\u1ed1i c\u00f3 th\u1ec3 b\u1eaft ngu\u1ed3n t\u1eeb m\u00e1y ch\u1ee7 \u0111\u00edch, m\u00e1y t\u00ednh c\u1ee7a b\u1ea1n ho\u1eb7c m\u1ed9t thi\u1ebft b\u1ecb hay d\u1ecbch v\u1ee5 trung gian nh\u01b0 b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn, t\u01b0\u1eddng l\u1eeda ho\u1eb7c m\u00e1y ch\u1ee7 proxy.<\/p>\n\n<p class=\"wp-block-paragraph\">C\u00e1c nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn bao g\u1ed3m:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>K\u1ebft n\u1ed1i Internet ho\u1eb7c Wi-Fi kh\u00f4ng \u1ed5n \u0111\u1ecbnh.<\/li>\n\n\n\n<li>C\u1ea5u h\u00ecnh VPN ho\u1eb7c proxy kh\u00f4ng ch\u00ednh x\u00e1c.<\/li>\n\n\n\n<li>S\u1ef1 can thi\u1ec7p c\u1ee7a t\u01b0\u1eddng l\u1eeda ho\u1eb7c ph\u1ea7n m\u1ec1m di\u1ec7t vi-r\u00fat.<\/li>\n\n\n\n<li>Ti\u1ec7n \u00edch m\u1edf r\u1ed9ng tr\u00ecnh duy\u1ec7t ho\u1eb7c ph\u1ea7n m\u1ec1m \u0111\u00e3 l\u1ed7i th\u1eddi.<\/li>\n\n\n\n<li>S\u1ef1 c\u1ed1 c\u1ea5u h\u00ecnh m\u1ea1ng.<\/li>\n\n\n\n<li>S\u1ef1 c\u1ed1 v\u1edbi m\u00e1y ch\u1ee7 web, CDN ho\u1eb7c proxy ng\u01b0\u1ee3c.<\/li>\n<\/ul>\n\n<p class=\"wp-block-paragraph\">B\u01b0\u1edbc \u0111\u1ea7u ti\u00ean l\u00e0 x\u00e1c \u0111\u1ecbnh s\u1ef1 c\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n hay ch\u00ednh trang web.<\/p>\n\n<h2 id=\"h-how-to-fix-err-connection-reset\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Cach_khac_phuc_ERR_CONNECTION_RESET\"><\/span>C\u00e1ch kh\u1eafc ph\u1ee5c ERR_CONNECTION_RESET<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p class=\"wp-block-paragraph\">H\u00e3y th\u1ef1c hi\u1ec7n l\u1ea7n l\u01b0\u1ee3t b\u1ea3y ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra s\u1ef1 c\u1ed1 sau, b\u1eaft \u0111\u1ea7u t\u1eeb nh\u1eefng c\u00e1ch \u0111\u01a1n gi\u1ea3n nh\u1ea5t.<\/p>\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"739\" height=\"515\" src=\"https:\/\/zynoo.com\/blog\/wp-content\/uploads\/2025\/07\/Seven-troubleshooting-methods-for-fixing-ERR_CONNECTION_RESET.png\" alt=\"B\u1ea3y ph\u01b0\u01a1ng ph\u00e1p kh\u1eafc ph\u1ee5c ERR_CONNECTION_RESET, bao g\u1ed3m ki\u1ec3m tra m\u1ea1ng, tr\u00ecnh duy\u1ec7t, VPN, t\u01b0\u1eddng l\u1eeda v\u00e0 m\u00e1y ch\u1ee7\" class=\"wp-image-3124\" srcset=\"https:\/\/zynoo.com\/blog\/wp-content\/uploads\/2025\/07\/Seven-troubleshooting-methods-for-fixing-ERR_CONNECTION_RESET.png 739w, https:\/\/zynoo.com\/blog\/wp-content\/uploads\/2025\/07\/Seven-troubleshooting-methods-for-fixing-ERR_CONNECTION_RESET-300x209.png 300w\" sizes=\"(max-width: 739px) 100vw, 739px\" \/><\/figure>\n\n<h3 id=\"h-1-check-your-internet-connection-and-website-availability\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Kiem_tra_ket_noi_Internet_va_kha_nang_truy_cap_trang_web\"><\/span>1. Ki\u1ec3m tra k\u1ebft n\u1ed1i Internet v\u00e0 kh\u1ea3 n\u0103ng truy c\u1eadp trang web<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p class=\"wp-block-paragraph\">Tr\u01b0\u1edbc ti\u00ean, h\u00e3y m\u1edf m\u1ed9t trang web kh\u00e1c \u0111\u1ec3 xem k\u1ebft n\u1ed1i Internet c\u1ee7a b\u1ea1n c\u00f3 ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng kh\u00f4ng.<\/p>\n\n<p class=\"wp-block-paragraph\">N\u1ebfu nhi\u1ec1u trang web \u0111\u1ec1u kh\u00f4ng truy c\u1eadp \u0111\u01b0\u1ee3c, s\u1ef1 c\u1ed1 c\u00f3 th\u1ec3 li\u00ean quan \u0111\u1ebfn thi\u1ebft b\u1ecb, b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn ho\u1eb7c nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 Internet c\u1ee7a b\u1ea1n.<\/p>\n\n<p class=\"wp-block-paragraph\">N\u1ebfu ch\u1ec9 m\u1ed9t trang web hi\u1ec3n th\u1ecb ERR_CONNECTION_RESET, h\u00e3y th\u1eed m\u1edf trang \u0111\u00f3 tr\u00ean thi\u1ebft b\u1ecb kh\u00e1c ho\u1eb7c qua m\u1ed9t k\u1ebft n\u1ed1i kh\u00e1c, ch\u1eb3ng h\u1ea1n nh\u01b0 d\u1eef li\u1ec7u di \u0111\u1ed9ng.<\/p>\n\n<p class=\"wp-block-paragraph\">Nh\u1eefng ph\u00e9p th\u1eed n\u00e0y gi\u00fap thu h\u1eb9p ph\u1ea1m vi nguy\u00ean nh\u00e2n:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>Truy c\u1eadp \u0111\u01b0\u1ee3c qua m\u1ea1ng kh\u00e1c:<\/strong> Ki\u1ec3m tra m\u1ea1ng n\u1ed9i b\u1ed9, nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 Internet ho\u1eb7c c\u00e0i \u0111\u1eb7t b\u1ea3o m\u1eadt c\u1ee7a b\u1ea1n.<\/li>\n\n\n\n<li><strong>Kh\u00f4ng truy c\u1eadp \u0111\u01b0\u1ee3c qua nhi\u1ec1u m\u1ea1ng:<\/strong> Nguy\u00ean nh\u00e2n c\u00f3 th\u1ec3 n\u1eb1m \u1edf trang web ho\u1eb7c c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u1ee7a trang.<\/li>\n\n\n\n<li><strong>Ch\u1ec9 kh\u00f4ng truy c\u1eadp \u0111\u01b0\u1ee3c tr\u00ean m\u1ed9t tr\u00ecnh duy\u1ec7t:<\/strong> Ki\u1ec3m tra c\u00e0i \u0111\u1eb7t v\u00e0 ti\u1ec7n \u00edch m\u1edf r\u1ed9ng c\u1ee7a tr\u00ecnh duy\u1ec7t.<\/li>\n<\/ul>\n\n<p class=\"wp-block-paragraph\">Nh\u1eefng k\u1ebft qu\u1ea3 n\u00e0y cung c\u1ea5p manh m\u1ed1i nh\u01b0ng kh\u00f4ng th\u1ec3 x\u00e1c \u0111\u1ecbnh ch\u1eafc ch\u1eafn ngu\u1ed3n g\u1ed1c s\u1ef1 c\u1ed1.<\/p>\n\n<h3 id=\"h-2-restart-your-browser-and-network-equipment\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Khoi_dong_lai_trinh_duyet_va_thiet_bi_mang\"><\/span>2. Kh\u1edfi \u0111\u1ed9ng l\u1ea1i tr\u00ecnh duy\u1ec7t v\u00e0 thi\u1ebft b\u1ecb m\u1ea1ng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p class=\"wp-block-paragraph\">\u0110\u00f4i khi, b\u1ea1n c\u00f3 th\u1ec3 kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 m\u1ea1ng t\u1ea1m th\u1eddi b\u1eb1ng c\u00e1ch kh\u1edfi \u0111\u1ed9ng l\u1ea1i thi\u1ebft b\u1ecb.<\/p>\n\n<p class=\"wp-block-paragraph\">Tr\u01b0\u1edbc ti\u00ean, h\u00e3y \u0111\u00f3ng r\u1ed3i m\u1edf l\u1ea1i tr\u00ecnh duy\u1ec7t. N\u1ebfu l\u1ed7i v\u1eabn ti\u1ebfp di\u1ec5n, h\u00e3y kh\u1edfi \u0111\u1ed9ng l\u1ea1i m\u00e1y t\u00ednh.<\/p>\n\n<p class=\"wp-block-paragraph\">B\u1ea1n c\u0169ng c\u00f3 th\u1ec3 kh\u1edfi \u0111\u1ed9ng l\u1ea1i b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn v\u00e0 modem:<\/p>\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li>Ng\u1eaft ngu\u1ed3n \u0111i\u1ec7n c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb n\u00e0y.<\/li>\n\n\n\n<li>\u0110\u1ee3i kho\u1ea3ng 30 gi\u00e2y.<\/li>\n\n\n\n<li>C\u1eafm l\u1ea1i ngu\u1ed3n v\u00e0 \u0111\u1ee3i k\u1ebft n\u1ed1i Internet \u0111\u01b0\u1ee3c kh\u00f4i ph\u1ee5c.<\/li>\n\n\n\n<li>M\u1edf l\u1ea1i trang web g\u1eb7p l\u1ed7i.<\/li>\n<\/ol>\n\n<p class=\"wp-block-paragraph\">N\u1ebfu c\u00e1c thi\u1ebft b\u1ecb kh\u00e1c c\u0169ng g\u1eb7p s\u1ef1 c\u1ed1 k\u1ebft n\u1ed1i t\u01b0\u01a1ng t\u1ef1, h\u00e3y li\u00ean h\u1ec7 v\u1edbi nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 Internet n\u1ebfu vi\u1ec7c kh\u1edfi \u0111\u1ed9ng l\u1ea1i thi\u1ebft b\u1ecb kh\u00f4ng hi\u1ec7u qu\u1ea3.<\/p>\n\n<h3 id=\"h-3-check-browser-extensions-and-cached-data\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Kiem_tra_tien_ich_mo_rong_va_du_lieu_duoc_luu_trong_bo_nho_dem_cua_trinh_duyet\"><\/span>3. Ki\u1ec3m tra ti\u1ec7n \u00edch m\u1edf r\u1ed9ng v\u00e0 d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c l\u01b0u trong b\u1ed9 nh\u1edb \u0111\u1ec7m c\u1ee7a tr\u00ecnh duy\u1ec7t<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p class=\"wp-block-paragraph\">Ti\u1ec7n \u00edch m\u1edf r\u1ed9ng tr\u00ecnh duy\u1ec7t c\u00f3 th\u1ec3 g\u00e2y tr\u1edf ng\u1ea1i cho vi\u1ec7c k\u1ebft n\u1ed1i v\u1edbi trang web, \u0111\u1eb7c bi\u1ec7t l\u00e0 nh\u1eefng ti\u1ec7n \u00edch s\u1eeda \u0111\u1ed5i y\u00eau c\u1ea7u m\u1ea1ng ho\u1eb7c l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp.<\/p>\n\n<p class=\"wp-block-paragraph\">Trong Google Chrome, h\u00e3y m\u1edf c\u1eeda s\u1ed5 \u1ea8n danh b\u1eb1ng <code><strong>Ctrl + Shift + N<\/strong><\/code> tr\u00ean Windows ho\u1eb7c <code><strong>Command + Shift + N<\/strong><\/code> tr\u00ean macOS.<\/p>\n\n<p class=\"wp-block-paragraph\">Th\u1eed m\u1edf trang web g\u1eb7p l\u1ed7i.<\/p>\n\n<p class=\"wp-block-paragraph\">N\u1ebfu trang web truy c\u1eadp \u0111\u01b0\u1ee3c, h\u00e3y v\u00e0o <code>chrome:\/\/extensions<\/code> v\u00e0 t\u1ea1m th\u1eddi t\u1eaft c\u00e1c ti\u1ec7n \u00edch m\u1edf r\u1ed9ng. Sau \u0111\u00f3, b\u1eadt l\u1ea1i t\u1eebng ti\u1ec7n \u00edch \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh ti\u1ec7n \u00edch n\u00e0o g\u00e2y xung \u0111\u1ed9t.<\/p>\n\n<p class=\"wp-block-paragraph\">B\u1ea1n c\u0169ng c\u00f3 th\u1ec3 x\u00f3a d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c l\u01b0u trong b\u1ed9 nh\u1edb \u0111\u1ec7m c\u1ee7a tr\u00ecnh duy\u1ec7t:<\/p>\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li>M\u1edf ph\u1ea7n C\u00e0i \u0111\u1eb7t c\u1ee7a Chrome.<\/li>\n\n\n\n<li>\u0110i t\u1edbi <strong>Quy\u1ec1n ri\u00eang t\u01b0 v\u00e0 b\u1ea3o m\u1eadt \u2192 X\u00f3a d\u1eef li\u1ec7u duy\u1ec7t web<\/strong>.<\/li>\n\n\n\n<li>Ch\u1ecdn h\u00ecnh \u1ea3nh v\u00e0 t\u1ec7p \u0111\u01b0\u1ee3c l\u01b0u trong b\u1ed9 nh\u1edb \u0111\u1ec7m.<\/li>\n\n\n\n<li>X\u00f3a d\u1eef li\u1ec7u \u0111\u00e3 ch\u1ecdn r\u1ed3i th\u1eed truy c\u1eadp l\u1ea1i trang web.<\/li>\n<\/ol>\n\n<p class=\"wp-block-paragraph\">X\u00f3a cookie c\u0169ng c\u00f3 th\u1ec3 gi\u00fap kh\u1eafc ph\u1ee5c m\u1ed9t s\u1ed1 s\u1ef1 c\u1ed1 tr\u00ecnh duy\u1ec7t, nh\u01b0ng thao t\u00e1c n\u00e0y c\u00f3 th\u1ec3 khi\u1ebfn b\u1ea1n b\u1ecb \u0111\u0103ng xu\u1ea5t kh\u1ecfi c\u00e1c trang web. H\u00e3y b\u1eaft \u0111\u1ea7u b\u1eb1ng vi\u1ec7c x\u00f3a c\u00e1c t\u1ec7p \u0111\u01b0\u1ee3c l\u01b0u trong b\u1ed9 nh\u1edb \u0111\u1ec7m.<\/p>\n\n<p class=\"wp-block-paragraph\">H\u00e3y c\u1eadp nh\u1eadt Chrome th\u01b0\u1eddng xuy\u00ean \u0111\u1ec3 tr\u00e1nh c\u00e1c v\u1ea5n \u0111\u1ec1 t\u01b0\u01a1ng th\u00edch do phi\u00ean b\u1ea3n tr\u00ecnh duy\u1ec7t \u0111\u00e3 l\u1ed7i th\u1eddi.<\/p>\n\n<h3 id=\"h-4-check-vpn-and-proxy-settings\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Kiem_tra_cai_dat_VPN_va_proxy\"><\/span>4. Ki\u1ec3m tra c\u00e0i \u0111\u1eb7t VPN v\u00e0 proxy<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p class=\"wp-block-paragraph\">VPN v\u00e0 m\u00e1y ch\u1ee7 proxy \u0111\u1ecbnh tuy\u1ebfn l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp qua c\u00e1c d\u1ecbch v\u1ee5 m\u1ea1ng b\u1ed5 sung. C\u1ea5u h\u00ecnh kh\u00f4ng ch\u00ednh x\u00e1c \u0111\u00f4i khi c\u00f3 th\u1ec3 l\u00e0m gi\u00e1n \u0111o\u1ea1n k\u1ebft n\u1ed1i.<\/p>\n\n<p class=\"wp-block-paragraph\">N\u1ebfu b\u1ea1n s\u1eed d\u1ee5ng VPN c\u00e1 nh\u00e2n, h\u00e3y th\u1eed truy c\u1eadp trang web g\u1eb7p l\u1ed7i trong th\u1eddi gian ng\u1eafn m\u00e0 kh\u00f4ng b\u1eadt VPN, tr\u00ean m\u1ed9t m\u1ea1ng \u0111\u00e1ng tin c\u1eady, r\u1ed3i kh\u00f4i ph\u1ee5c c\u00e0i \u0111\u1eb7t k\u1ebft n\u1ed1i b\u1ea1n mu\u1ed1n s\u1eed d\u1ee5ng.<\/p>\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 ki\u1ec3m tra c\u00e0i \u0111\u1eb7t proxy:<\/p>\n\n<p class=\"wp-block-paragraph\"><strong>Tr\u00ean Windows 11:<\/strong><\/p>\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li>M\u1edf <strong>C\u00e0i \u0111\u1eb7t \u2192 M\u1ea1ng &amp; Internet \u2192 Proxy<\/strong>.<\/li>\n\n\n\n<li>Ki\u1ec3m tra c\u00e0i \u0111\u1eb7t proxy t\u1ef1 \u0111\u1ed9ng v\u00e0 th\u1ee7 c\u00f4ng.<\/li>\n\n\n\n<li>Ch\u1ec9nh s\u1eeda m\u1ecdi c\u1ea5u h\u00ecnh kh\u00f4ng mong mu\u1ed1n.<\/li>\n<\/ol>\n\n<p class=\"wp-block-paragraph\"><strong>Tr\u00ean macOS:<\/strong><\/p>\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li>M\u1edf <strong>C\u00e0i \u0111\u1eb7t h\u1ec7 th\u1ed1ng \u2192 M\u1ea1ng<\/strong>.<\/li>\n\n\n\n<li>Ch\u1ecdn k\u1ebft n\u1ed1i m\u1ea1ng \u0111ang ho\u1ea1t \u0111\u1ed9ng.<\/li>\n\n\n\n<li>Nh\u1ea5p v\u00e0o <strong>Chi ti\u1ebft \u2192 Proxy<\/strong>.<\/li>\n\n\n\n<li>Ki\u1ec3m tra c\u00e1c d\u1ecbch v\u1ee5 proxy \u0111\u00e3 \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh.<\/li>\n<\/ol>\n\n<p class=\"wp-block-paragraph\">\u0110\u1eebng t\u1eaft proxy ho\u1eb7c VPN m\u00e0 n\u01a1i l\u00e0m vi\u1ec7c hay t\u1ed5 ch\u1ee9c c\u1ee7a b\u1ea1n y\u00eau c\u1ea7u s\u1eed d\u1ee5ng. H\u00e3y li\u00ean h\u1ec7 v\u1edbi qu\u1ea3n tr\u1ecb vi\u00ean m\u1ea1ng n\u1ebfu c\u00e1c c\u00e0i \u0111\u1eb7t \u0111\u00f3 \u0111\u01b0\u1ee3c qu\u1ea3n l\u00fd t\u1eadp trung.<\/p>\n\n<h3 id=\"h-5-review-firewall-and-antivirus-settings\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Kiem_tra_cai_dat_tuong_lua_va_phan_mem_diet_vi-rut\"><\/span>5. Ki\u1ec3m tra c\u00e0i \u0111\u1eb7t t\u01b0\u1eddng l\u1eeda v\u00e0 ph\u1ea7n m\u1ec1m di\u1ec7t vi-r\u00fat<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p class=\"wp-block-paragraph\">T\u01b0\u1eddng l\u1eeda v\u00e0 ph\u1ea7n m\u1ec1m di\u1ec7t vi-r\u00fat \u0111\u00f4i khi ch\u1eb7n l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp h\u1ee3p l\u1ec7 ho\u1eb7c c\u1ea3n tr\u1edf k\u1ebft n\u1ed1i HTTPS.<\/p>\n\n<p class=\"wp-block-paragraph\">Tr\u00ean Windows, h\u00e3y m\u1edf:<\/p>\n\n<p class=\"wp-block-paragraph\"><strong>B\u1ea3o m\u1eadt Windows \u2192 T\u01b0\u1eddng l\u1eeda &amp; b\u1ea3o v\u1ec7 m\u1ea1ng<\/strong><\/p>\n\n<p class=\"wp-block-paragraph\">Ki\u1ec3m tra xem \u1ee9ng d\u1ee5ng g\u1eb7p l\u1ed7i c\u00f3 b\u1ecb m\u1ed9t quy t\u1eafc t\u01b0\u1eddng l\u1eeda h\u1ea1n ch\u1ebf hay kh\u00f4ng.<\/p>\n\n<p class=\"wp-block-paragraph\">N\u1ebfu ph\u1ea7n m\u1ec1m di\u1ec7t vi-r\u00fat c\u1ee7a b\u1ea1n c\u00f3 ch\u1ee9c n\u0103ng qu\u00e9t HTTPS ho\u1eb7c l\u1ecdc web, h\u00e3y ki\u1ec3m tra nh\u1eadt k\u00fd \u0111\u1ec3 t\u00ecm c\u00e1c k\u1ebft n\u1ed1i b\u1ecb ch\u1eb7n.<\/p>\n\n<p class=\"wp-block-paragraph\"><strong>Tr\u00e1nh t\u1eaft T\u01b0\u1eddng l\u1eeda Windows ho\u1eb7c v\u00f4 hi\u1ec7u h\u00f3a ph\u1ea7n m\u1ec1m di\u1ec7t vi-r\u00fat \u0111\u1ec3 b\u1ecf qua l\u1ed7i.<\/strong> Thay v\u00e0o \u0111\u00f3, h\u00e3y ch\u1ec9nh s\u1eeda quy t\u1eafc ho\u1eb7c c\u1ea5u h\u00ecnh li\u00ean quan.<\/p>\n\n<p class=\"wp-block-paragraph\">Tr\u00ean c\u00e1c m\u1ea1ng doanh nghi\u1ec7p \u0111\u01b0\u1ee3c qu\u1ea3n l\u00fd, h\u00e3y nh\u1edd qu\u1ea3n tr\u1ecb vi\u00ean m\u1ea1ng ki\u1ec3m tra nh\u1eefng xung \u0111\u1ed9t c\u00f3 th\u1ec3 x\u1ea3y ra v\u1edbi ch\u00ednh s\u00e1ch b\u1ea3o m\u1eadt.<\/p>\n\n<h3 id=\"h-6-flush-dns-and-reset-windows-network-settings\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"6_Xoa_bo_nho_dem_DNS_va_dat_lai_cai_dat_mang_Windows\"><\/span>6. X\u00f3a b\u1ed9 nh\u1edb \u0111\u1ec7m DNS v\u00e0 \u0111\u1eb7t l\u1ea1i c\u00e0i \u0111\u1eb7t m\u1ea1ng Windows<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p class=\"wp-block-paragraph\">N\u1ebfu l\u1ed7i v\u1eabn x\u1ea3y ra tr\u00ean nhi\u1ec1u trang web, nguy\u00ean nh\u00e2n c\u00f3 th\u1ec3 li\u00ean quan \u0111\u1ebfn c\u1ea5u h\u00ecnh m\u1ea1ng Windows.<\/p>\n\n<p class=\"wp-block-paragraph\">Tr\u01b0\u1edbc ti\u00ean, h\u00e3y x\u00f3a b\u1ed9 nh\u1edb \u0111\u1ec7m c\u1ee7a b\u1ed9 ph\u00e2n gi\u1ea3i DNS c\u1ee5c b\u1ed9.<\/p>\n\n<p class=\"wp-block-paragraph\">M\u1edf Command Prompt v\u00e0 ch\u1ea1y:<\/p>\n\n<pre class=\"wp-block-code\"><code><code>ipconfig \/flushdns<\/code><\/code><\/pre>\n\n<p class=\"wp-block-paragraph\">Thao t\u00e1c n\u00e0y x\u00f3a c\u00e1c b\u1ea3n ghi DNS \u0111\u01b0\u1ee3c l\u01b0u trong b\u1ed9 nh\u1edb \u0111\u1ec7m. N\u00f3 c\u00f3 th\u1ec3 h\u1eefu \u00edch khi th\u00f4ng tin DNS \u0111\u00e3 l\u1ed7i th\u1eddi d\u1eabn tr\u00ecnh duy\u1ec7t c\u1ee7a b\u1ea1n \u0111\u1ebfn sai \u0111\u1ecba ch\u1ec9, m\u1eb7c d\u00f9 kh\u00f4ng tr\u1ef1c ti\u1ebfp kh\u1eafc ph\u1ee5c vi\u1ec7c k\u1ebft n\u1ed1i TCP b\u1ecb \u0111\u1eb7t l\u1ea1i.<\/p>\n\n<p class=\"wp-block-paragraph\">N\u1ebfu b\u1ea1n v\u1eabn g\u1eb7p s\u1ef1 c\u1ed1 k\u1ebft n\u1ed1i tr\u00ean di\u1ec7n r\u1ed9ng, h\u00e3y m\u1edf Command Prompt <strong>v\u1edbi quy\u1ec1n qu\u1ea3n tr\u1ecb vi\u00ean<\/strong> v\u00e0 ch\u1ea1y:<\/p>\n\n<pre class=\"wp-block-code\"><code><code>netsh winsock reset<\/code><\/code><\/pre>\n\n<p class=\"wp-block-paragraph\">Sau \u0111\u00f3, kh\u1edfi \u0111\u1ed9ng l\u1ea1i Windows.<\/p>\n\n<p class=\"wp-block-paragraph\">L\u1ec7nh n\u00e0y \u0111\u1eb7t l\u1ea1i danh m\u1ee5c Winsock c\u1ee7a Windows, th\u00e0nh ph\u1ea7n qu\u1ea3n l\u00fd m\u1ed9t s\u1ed1 ch\u1ee9c n\u0103ng giao ti\u1ebfp m\u1ea1ng.<\/p>\n\n<p class=\"wp-block-paragraph\">V\u00ec vi\u1ec7c \u0111\u1eb7t l\u1ea1i Winsock c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ph\u1ea7n m\u1ec1m m\u1ea1ng v\u00e0 c\u00e1c c\u1ea5u h\u00ecnh t\u00f9y ch\u1ec9nh, ch\u1ec9 n\u00ean th\u1ef1c hi\u1ec7n khi s\u1ef1 c\u1ed1 k\u00e9o d\u00e0i v\u00e0 c\u00e1c c\u00e1ch ki\u1ec3m tra \u0111\u01a1n gi\u1ea3n h\u01a1n kh\u00f4ng hi\u1ec7u qu\u1ea3.<\/p>\n\n<p class=\"wp-block-paragraph\">N\u1ebfu b\u1ea1n s\u1eed d\u1ee5ng m\u00e1y t\u00ednh do c\u00f4ng ty qu\u1ea3n l\u00fd, h\u00e3y tham kh\u1ea3o \u00fd ki\u1ebfn qu\u1ea3n tr\u1ecb vi\u00ean tr\u01b0\u1edbc khi \u0111\u1eb7t l\u1ea1i c\u00e0i \u0111\u1eb7t m\u1ea1ng.<\/p>\n\n<h3 id=\"h-7-check-the-website-s-server-configuration\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"7_Kiem_tra_cau_hinh_may_chu_cua_trang_web\"><\/span>7. Ki\u1ec3m tra c\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7 c\u1ee7a trang web<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p class=\"wp-block-paragraph\">N\u1ebfu b\u1ea1n s\u1edf h\u1eefu trang web g\u1eb7p l\u1ed7i, nguy\u00ean nh\u00e2n c\u00f3 th\u1ec3 n\u1eb1m \u1edf c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng l\u01b0u tr\u1eef c\u1ee7a b\u1ea1n.<\/p>\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"789\" height=\"515\" src=\"https:\/\/zynoo.com\/blog\/wp-content\/uploads\/2025\/07\/Server-side-troubleshooting-for-ERR_CONNECTION_RESET-involving-Nginx-Apache-firewalls-CDN-settings-and-server-resources.png\" alt=\"Ki\u1ec3m tra s\u1ef1 c\u1ed1 ERR_CONNECTION_RESET ph\u00eda m\u00e1y ch\u1ee7, bao g\u1ed3m Nginx, Apache, t\u01b0\u1eddng l\u1eeda, c\u00e0i \u0111\u1eb7t CDN v\u00e0 t\u00e0i nguy\u00ean m\u00e1y ch\u1ee7.\" class=\"wp-image-3125\" srcset=\"https:\/\/zynoo.com\/blog\/wp-content\/uploads\/2025\/07\/Server-side-troubleshooting-for-ERR_CONNECTION_RESET-involving-Nginx-Apache-firewalls-CDN-settings-and-server-resources.png 789w, https:\/\/zynoo.com\/blog\/wp-content\/uploads\/2025\/07\/Server-side-troubleshooting-for-ERR_CONNECTION_RESET-involving-Nginx-Apache-firewalls-CDN-settings-and-server-resources-300x196.png 300w, https:\/\/zynoo.com\/blog\/wp-content\/uploads\/2025\/07\/Server-side-troubleshooting-for-ERR_CONNECTION_RESET-involving-Nginx-Apache-firewalls-CDN-settings-and-server-resources-768x501.png 768w\" sizes=\"(max-width: 789px) 100vw, 789px\" \/><\/figure>\n\n<p class=\"wp-block-paragraph\">Qu\u1ea3n tr\u1ecb vi\u00ean trang web n\u00ean ki\u1ec3m tra:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>Nh\u1eadt k\u00fd m\u00e1y ch\u1ee7 web:<\/strong> Ki\u1ec3m tra l\u1ed7i Apache ho\u1eb7c Nginx v\u00e0 nh\u1eefng l\u1ea7n d\u1ecbch v\u1ee5 kh\u1edfi \u0111\u1ed9ng l\u1ea1i ngo\u00e0i d\u1ef1 ki\u1ebfn.<\/li>\n\n\n\n<li><strong>Quy t\u1eafc t\u01b0\u1eddng l\u1eeda:<\/strong> Ki\u1ec3m tra c\u00e1c \u0111\u1ecba ch\u1ec9 IP b\u1ecb ch\u1eb7n, gi\u1edbi h\u1ea1n t\u1ed1c \u0111\u1ed9 y\u00eau c\u1ea7u v\u00e0 ch\u00ednh s\u00e1ch b\u1ea3o m\u1eadt.<\/li>\n\n\n\n<li><strong>C\u1ea5u h\u00ecnh CDN:<\/strong> Ki\u1ec3m tra l\u1ed7i k\u1ebft n\u1ed1i v\u00e0 quy t\u1eafc ch\u1eb7n tr\u00ean Cloudflare ho\u1eb7c CDN kh\u00e1c.<\/li>\n\n\n\n<li><strong>C\u00e0i \u0111\u1eb7t proxy ng\u01b0\u1ee3c:<\/strong> T\u00ecm c\u00e1c tr\u01b0\u1eddng h\u1ee3p k\u1ebft n\u1ed1i \u0111\u1ebfn m\u00e1y ch\u1ee7 th\u01b0\u1ee3ng ngu\u1ed3n th\u1ea5t b\u1ea1i ho\u1eb7c \u1ee9ng d\u1ee5ng b\u1ecb l\u1ed7i.<\/li>\n\n\n\n<li><strong>T\u00e0i nguy\u00ean m\u00e1y ch\u1ee7:<\/strong> Theo d\u00f5i CPU, b\u1ed9 nh\u1edb v\u00e0 gi\u1edbi h\u1ea1n k\u1ebft n\u1ed1i khi x\u1ea3y ra l\u1ed7i.<\/li>\n<\/ul>\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5, tr\u00ean m\u00e1y ch\u1ee7 Linux ch\u1ea1y Nginx, b\u1ea1n c\u00f3 th\u1ec3 ki\u1ec3m tra c\u00e1c m\u1ee5c g\u1ea7n \u0111\u00e2y trong nh\u1eadt k\u00fd l\u1ed7i:<\/p>\n\n<pre class=\"wp-block-code\"><code><code>sudo tail -n 50 \/var\/log\/nginx\/error.log<\/code><\/code><\/pre>\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi Apache tr\u00ean Debian ho\u1eb7c Ubuntu, l\u1ec7nh t\u01b0\u01a1ng \u0111\u01b0\u01a1ng th\u01b0\u1eddng l\u00e0:<\/p>\n\n<pre class=\"wp-block-code\"><code><code>sudo tail -n 50 \/var\/log\/apache2\/error.log<\/code><\/code><\/pre>\n\n<p class=\"wp-block-paragraph\">V\u1ecb tr\u00ed l\u01b0u nh\u1eadt k\u00fd thay \u0111\u1ed5i t\u00f9y theo h\u1ec7 \u0111i\u1ec1u h\u00e0nh v\u00e0 c\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7 web.<\/p>\n\n<p class=\"wp-block-paragraph\">B\u1ea1n c\u0169ng c\u00f3 th\u1ec3 ki\u1ec3m tra k\u1ebft n\u1ed1i HTTPS b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng:<\/p>\n\n<pre class=\"wp-block-code\"><code><code>curl -Iv https:\/\/example.com<\/code><\/code><\/pre>\n\n<p class=\"wp-block-paragraph\">Thay <code>example.com<\/code> b\u1eb1ng t\u00ean mi\u1ec1n c\u1ee7a b\u1ea1n. K\u1ebft qu\u1ea3 \u0111\u1ea7u ra c\u00f3 th\u1ec3 gi\u00fap x\u00e1c \u0111\u1ecbnh l\u1ed7i k\u1ebft n\u1ed1i ho\u1eb7c s\u1ef1 c\u1ed1 ph\u1ea3n h\u1ed3i HTTP, nh\u01b0ng c\u00f3 th\u1ec3 kh\u00f4ng cho bi\u1ebft th\u00e0nh ph\u1ea7n m\u1ea1ng n\u00e0o \u0111\u00e3 khi\u1ebfn k\u1ebft n\u1ed1i b\u1ecb \u0111\u1eb7t l\u1ea1i.<\/p>\n\n<p class=\"wp-block-paragraph\">N\u1ebfu trang web c\u1ee7a b\u1ea1n ch\u1ea1y tr\u00ean VPS, h\u00e3y ki\u1ec3m tra nh\u1eefng thay \u0111\u1ed5i c\u1ea5u h\u00ecnh g\u1ea7n \u0111\u00e2y v\u00e0 li\u00ean h\u1ec7 v\u1edbi nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 l\u01b0u tr\u1eef khi c\u00f3 d\u1ea5u hi\u1ec7u cho th\u1ea5y s\u1ef1 c\u1ed1 n\u1eb1m \u1edf c\u1ea5p \u0111\u1ed9 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng.<\/p>\n\n<h2 id=\"h-err-connection-reset-vs-other-browser-errors\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"ERR_CONNECTION_RESET_va_cac_loi_trinh_duyet_khac\"><\/span>ERR_CONNECTION_RESET v\u00e0 c\u00e1c l\u1ed7i tr\u00ecnh duy\u1ec7t kh\u00e1c<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p class=\"wp-block-paragraph\">Kh\u00f4ng ph\u1ea3i m\u1ecdi l\u1ed7i k\u1ebft n\u1ed1i v\u1edbi trang web \u0111\u1ec1u c\u00f3 c\u00f9ng nguy\u00ean nh\u00e2n.<\/p>\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5, <strong>ERR_CONNECTION_RESET<\/strong> th\u01b0\u1eddng li\u00ean quan \u0111\u1ebfn k\u1ebft n\u1ed1i m\u1ea1ng b\u1ecb gi\u00e1n \u0111o\u1ea1n.<\/p>\n\n<div class=\"wp-block-group zynoo-related-reading has-border-color has-text-color has-background is-layout-flow wp-block-group-is-layout-flow\" style=\"border-color:#c7d8ef;border-width:1px;border-radius:8px;border-left-color:#0069ff;border-left-width:3px;color:#24364f;background-color:#eaf2ff;margin-top:28px;margin-bottom:28px;padding-top:18px;padding-right:22px;padding-bottom:18px;padding-left:22px;font-size:16px;line-height:1.8\">\n<p class=\"wp-block-paragraph\">Trong khi \u0111\u00f3, <a href=\"https:\/\/zynoo.com\/blog\/vi\/err_ssl_version_or_cipher_mismatch\/\">ERR_SSL_VERSION_OR_CIPHER_MISMATCH<\/a> th\u01b0\u1eddng cho bi\u1ebft tr\u00ecnh duy\u1ec7t kh\u00f4ng th\u1ec3 th\u01b0\u01a1ng l\u01b0\u1ee3ng c\u00e1c c\u00e0i \u0111\u1eb7t SSL\/TLS t\u01b0\u01a1ng th\u00edch v\u1edbi trang web.<\/p>\n<\/div>\n\n<div class=\"wp-block-group zynoo-related-reading has-border-color has-text-color has-background is-layout-flow wp-block-group-is-layout-flow\" style=\"border-color:#c7d8ef;border-width:1px;border-radius:8px;border-left-color:#0069ff;border-left-width:3px;color:#24364f;background-color:#eaf2ff;margin-top:28px;margin-bottom:28px;padding-top:18px;padding-right:22px;padding-bottom:18px;padding-left:22px;font-size:16px;line-height:1.8\">\n<p class=\"wp-block-paragraph\">M\u1ed9t s\u1ef1 c\u1ed1 ph\u1ed5 bi\u1ebfn kh\u00e1c, <a href=\"https:\/\/zynoo.com\/blog\/err-too-many-redirects\/\">ERR_TOO_MANY_REDIRECTS<\/a>, x\u1ea3y ra khi trang web li\u00ean t\u1ee5c chuy\u1ec3n h\u01b0\u1edbng kh\u00e1ch truy c\u1eadp gi\u1eefa c\u00e1c URL.<\/p>\n<\/div>\n\n<p class=\"wp-block-paragraph\">Hi\u1ec3u r\u00f5 l\u1ed7i c\u1ee5 th\u1ec3 s\u1ebd gi\u00fap b\u1ea1n tr\u00e1nh c\u00e1c b\u01b0\u1edbc ki\u1ec3m tra s\u1ef1 c\u1ed1 kh\u00f4ng c\u1ea7n thi\u1ebft.<\/p>\n\n<h2 id=\"h-frequently-asked-questions\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Cau_hoi_thuong_gap\"><\/span>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1792840517074\"><strong class=\"schema-faq-question\">V\u00ec sao ERR_CONNECTION_RESET x\u1ea3y ra tr\u00ean Chrome?<\/strong> <p class=\"schema-faq-answer\">L\u1ed7i xu\u1ea5t hi\u1ec7n khi k\u1ebft n\u1ed1i c\u1ee7a Chrome v\u1edbi m\u1ed9t trang web b\u1ecb \u0111\u1eb7t l\u1ea1i \u0111\u1ed9t ng\u1ed9t. C\u00e1c nguy\u00ean nh\u00e2n c\u00f3 th\u1ec3 bao g\u1ed3m m\u1ea1ng kh\u00f4ng \u1ed5n \u0111\u1ecbnh, VPN, ph\u1ea7n m\u1ec1m b\u1ea3o m\u1eadt ho\u1eb7c s\u1ef1 c\u1ed1 c\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7 web.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1792840541510\"><strong class=\"schema-faq-question\">ERR_CONNECTION_RESET c\u00f3 th\u1ec3 do trang web g\u00e2y ra kh\u00f4ng?<\/strong> <p class=\"schema-faq-answer\">C\u00f3. M\u00e1y ch\u1ee7, t\u01b0\u1eddng l\u1eeda, proxy ng\u01b0\u1ee3c ho\u1eb7c CDN c\u1ee7a trang web c\u00f3 th\u1ec3 l\u00e0m gi\u00e1n \u0111o\u1ea1n k\u1ebft n\u1ed1i. N\u1ebfu s\u1ef1 c\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn nhi\u1ec1u kh\u00e1ch truy c\u1eadp tr\u00ean c\u00e1c m\u1ea1ng kh\u00e1c nhau, vi\u1ec7c ki\u1ec3m tra ph\u00eda m\u00e1y ch\u1ee7 \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1792840552251\"><strong class=\"schema-faq-question\">X\u00f3a b\u1ed9 nh\u1edb \u0111\u1ec7m DNS c\u00f3 kh\u1eafc ph\u1ee5c \u0111\u01b0\u1ee3c ERR_CONNECTION_RESET kh\u00f4ng?<\/strong> <p class=\"schema-faq-answer\">\u0110\u00f4i khi c\u00f3, n\u1ebfu th\u00f4ng tin DNS \u0111\u00e3 l\u1ed7i th\u1eddi g\u00f3p ph\u1ea7n g\u00e2y ra s\u1ef1 c\u1ed1 k\u1ebft n\u1ed1i. Tuy nhi\u00ean, vi\u1ec7c x\u00f3a b\u1ed9 nh\u1edb \u0111\u1ec7m DNS s\u1ebd kh\u00f4ng kh\u1eafc ph\u1ee5c \u0111\u01b0\u1ee3c t\u00ecnh tr\u1ea1ng m\u00e1y ch\u1ee7 t\u1eeb ch\u1ed1i k\u1ebft n\u1ed1i ho\u1eb7c t\u01b0\u1eddng l\u1eeda \u0111\u1eb7t l\u1ea1i k\u1ebft n\u1ed1i.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1792840565454\"><strong class=\"schema-faq-question\">ERR_CONNECTION_RESET c\u00f3 ph\u1ea3i l\u00e0 r\u1ee7i ro b\u1ea3o m\u1eadt kh\u00f4ng?<\/strong> <p class=\"schema-faq-answer\">Kh\u00f4ng nh\u1ea5t thi\u1ebft. L\u1ed7i n\u00e0y th\u01b0\u1eddng cho th\u1ea5y s\u1ef1 c\u1ed1 k\u1ebft n\u1ed1i m\u1ea1ng ch\u1ee9 kh\u00f4ng ph\u1ea3i m\u1ed9t v\u1ee5 x\u00e2m ph\u1ea1m b\u1ea3o m\u1eadt. Tuy nhi\u00ean, h\u00e3y ki\u1ec3m tra ho\u1ea1t \u0111\u1ed9ng b\u1ea5t th\u01b0\u1eddng c\u1ee7a t\u01b0\u1eddng l\u1eeda, proxy ho\u1eb7c ph\u1ea7n m\u1ec1m b\u1ea3o m\u1eadt thay v\u00ec t\u1eaft c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o v\u1ec7.<\/p> <\/div> <\/div>\n\n<h3 id=\"h-conclusion\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ket_luan\"><\/span>K\u1ebft lu\u1eadn<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p class=\"wp-block-paragraph\">ERR_CONNECTION_RESET c\u00f3 th\u1ec3 g\u00e2y kh\u00f3 ch\u1ecbu, nh\u01b0ng x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i b\u1ecb l\u1ed7i \u1edf \u0111\u00e2u s\u1ebd gi\u00fap vi\u1ec7c ki\u1ec3m tra v\u00e0 kh\u1eafc ph\u1ee5c d\u1ec5 d\u00e0ng h\u01a1n nhi\u1ec1u.<\/p>\n\n<p class=\"wp-block-paragraph\">H\u00e3y b\u1eaft \u0111\u1ea7u b\u1eb1ng c\u00e1ch ki\u1ec3m tra k\u1ebft n\u1ed1i Internet, kh\u1edfi \u0111\u1ed9ng l\u1ea1i thi\u1ebft b\u1ecb v\u00e0 xem x\u00e9t c\u00e1c ti\u1ec7n \u00edch m\u1edf r\u1ed9ng tr\u00ecnh duy\u1ec7t. N\u1ebfu s\u1ef1 c\u1ed1 v\u1eabn ti\u1ebfp di\u1ec5n, h\u00e3y ki\u1ec3m tra c\u00e0i \u0111\u1eb7t VPN, quy t\u1eafc t\u01b0\u1eddng l\u1eeda v\u00e0 c\u1ea5u h\u00ecnh m\u1ea1ng Windows.<\/p>\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi ch\u1ee7 s\u1edf h\u1eefu trang web, nh\u1eadt k\u00fd m\u00e1y ch\u1ee7, c\u1ea5u h\u00ecnh t\u01b0\u1eddng l\u1eeda v\u00e0 c\u00e0i \u0111\u1eb7t proxy ng\u01b0\u1ee3c l\u00e0 nh\u1eefng n\u01a1i quan tr\u1ecdng c\u1ea7n ki\u1ec3m tra.<\/p>\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1ch t\u1ed1t nh\u1ea5t l\u00e0 b\u1eaft \u0111\u1ea7u v\u1edbi nh\u1eefng b\u01b0\u1edbc ki\u1ec3m tra \u0111\u01a1n gi\u1ea3n, \u00edt r\u1ee7i ro v\u00e0 ch\u1ec9 chuy\u1ec3n sang ki\u1ec3m tra chuy\u00ean s\u00e2u khi c\u1ea7n thi\u1ebft.<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>ERR_CONNECTION_RESET l\u00e0 l\u1ed7i tr\u00ecnh duy\u1ec7t x\u1ea3y ra khi k\u1ebft n\u1ed1i gi\u1eefa thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n v\u00e0 m\u1ed9t trang web b\u1ecb \u0111\u1eb7t l\u1ea1i \u0111\u1ed9t ng\u1ed9t tr\u01b0\u1edbc khi trang t\u1ea3i xong. L\u1ed7i n\u00e0y th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n tr\u00ean Google Chrome v\u1edbi th\u00f4ng b\u00e1o &#8220;Kh\u00f4ng th\u1ec3 truy c\u1eadp trang web n\u00e0y. K\u1ebft n\u1ed1i \u0111\u00e3 b\u1ecb \u0111\u1eb7t l\u1ea1i.&#8221; Nguy\u00ean nh\u00e2n 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