Minha internet estava funcionando bem até amanhã. De repente, não consigo abrir o site www.github.com, www.deviantart.com e, além disso, a página de configurações do meu roteador 192.168.2.1. Primeiro, eu pensei que seria um problema com o meu provedor (eu tenho uma conexão DSL). Eu tenho um sistema de dual-boot com win7, então verifiquei a conexão lá. Tudo funcionou bem! Certamente não foi o ISP que estava incomodando, tinha que fazer algo com o Ubuntu.
Problemas e erros:
Github diz:
This webpage is not available
Google Chrome could not load the webpage because github.com took too long to respond. The website may be down, or you may be experiencing issues with your Internet connection.
Here are some suggestions:
Reload this webpage later.
Check your Internet connection. Restart any router, modem, or other network devices you may be using.
Add Google Chrome as a permitted program in your firewall's or antivirus software's settings. If it is already a permitted program, try deleting it from the list of permitted programs and adding it again.
If you use a proxy server, check your proxy settings or contact your network administrator to make sure the proxy server is working. If you don't believe you should be using a proxy server, adjust your proxy settings: Go to the Chrome menu > Settings > Show advanced settings... > Change proxy settings... and make sure your configuration is set to "no proxy" or "direct."
Error 7 (net::ERR_TIMED_OUT): The operation timed out.
O mesmo acontece com a página de configuração do roteador, enquanto deviantart demora para carregar.
O que eu tentei:
Eu li algumas postagens anteriores sobre esse tópico e tentei o seguinte:
1) Eu uso o google chrome. Eu mudei para o firefox no Ubuntu, mas não funcionou.
2) limpou o cache e os cookies, mas não.
3) Defina o servidor DNS primário para o DNS público do google, em seguida, para abrir o DNS, ainda nada.
4) Tentei definir o DNS primário para 192.168.2.1, ainda não.
5) Reinicializei meu roteador, configurei-o do zero no win7 e voltei para o Ubuntu, para ver que o problema ainda persistia.
6) pingado www.github.com e depois google.com, aqui estão os resultados:
PING www.github.com (204.232.175.90) 56(84) bytes of data.
64 bytes from github.com (204.232.175.90): icmp_req=1 ttl=53 time=390 ms
64 bytes from github.com (204.232.175.90): icmp_req=2 ttl=53 time=392 ms
64 bytes from github.com (204.232.175.90): icmp_req=3 ttl=53 time=384 ms
64 bytes from github.com (204.232.175.90): icmp_req=4 ttl=53 time=394 ms
64 bytes from github.com (204.232.175.90): icmp_req=5 ttl=53 time=396 ms
64 bytes from github.com (204.232.175.90): icmp_req=6 ttl=53 time=402 ms
64 bytes from github.com (204.232.175.90): icmp_req=7 ttl=53 time=397 ms
64 bytes from github.com (204.232.175.90): icmp_req=9 ttl=53 time=402 ms
64 bytes from github.com (204.232.175.90): icmp_req=10 ttl=53 time=397 ms
64 bytes from github.com (204.232.175.90): icmp_req=11 ttl=53 time=397 ms
64 bytes from github.com (204.232.175.90): icmp_req=12 ttl=53 time=398 ms
64 bytes from github.com (204.232.175.90): icmp_req=13 ttl=53 time=400 ms
64 bytes from github.com (204.232.175.90): icmp_req=14 ttl=53 time=399 ms
64 bytes from github.com (204.232.175.90): icmp_req=15 ttl=53 time=403 ms
64 bytes from github.com (204.232.175.90): icmp_req=16 ttl=53 time=404 ms
64 bytes from github.com (204.232.175.90): icmp_req=17 ttl=53 time=406 ms
64 bytes from github.com (204.232.175.90): icmp_req=18 ttl=53 time=403 ms
--- www.github.com ping statistics ---
18 packets transmitted, 17 received, 5% packet loss, time 31092ms
rtt min/avg/max/mdev = 384.510/398.374/406.145/5.407 ms
PING www.google.com (173.194.38.176) 56(84) bytes of data.
64 bytes from sin04s02-in-f16.1e100.net (173.194.38.176): icmp_req=1 ttl=53 time=132 ms
64 bytes from sin04s02-in-f16.1e100.net (173.194.38.176): icmp_req=2 ttl=53 time=130 ms
64 bytes from sin04s02-in-f16.1e100.net (173.194.38.176): icmp_req=3 ttl=53 time=128 ms
64 bytes from sin04s02-in-f16.1e100.net (173.194.38.176): icmp_req=4 ttl=53 time=126 ms
64 bytes from sin04s02-in-f16.1e100.net (173.194.38.176): icmp_req=5 ttl=53 time=129 ms
64 bytes from sin04s02-in-f16.1e100.net (173.194.38.176): icmp_req=6 ttl=53 time=128 ms
64 bytes from sin04s02-in-f16.1e100.net (173.194.38.176): icmp_req=7 ttl=53 time=133 ms
64 bytes from sin04s02-in-f16.1e100.net (173.194.38.176): icmp_req=8 ttl=53 time=123 ms
64 bytes from sin04s02-in-f16.1e100.net (173.194.38.176): icmp_req=9 ttl=53 time=131 ms
64 bytes from sin04s02-in-f16.1e100.net (173.194.38.176): icmp_req=10 ttl=53 time=119 ms
64 bytes from sin04s02-in-f16.1e100.net (173.194.38.176): icmp_req=11 ttl=53 time=127 ms
^C
--- www.google.com ping statistics ---
11 packets transmitted, 11 received, 0% packet loss, time 10009ms
rtt min/avg/max/mdev = 119.351/128.304/133.168/3.983 ms
Estou certo de que não tenho proxy e o IPv6 está desativado.
Por favor me ajude com o problema.