我尝试将网站github.com与chrome连接，但我有错误。
This site can’t be reached
github.com took too long to respond.
Try:
Checking the connection
Checking the proxy and the firewall
Running Network Diagnostics
ERR_CONNECTION_TIMED_OUT
我搜索谷歌并尝试更改代理和防火墙。但不工作！
我需要帮忙。请！