【GitHub】github clone远程仓库的时候一直失败

git clone https://github.com/coderwhy/hy-react-web-music.git
正克隆到 'hy-react-web-music'...
fatal: unable to access 'https://github.com/coderwhy/hy-react-web-music.git/': Failed to connect to github.com port 443 after 75011 ms: Couldn't connect to server

git clone https://github.com/coderwhy/hy-react-web-music.git
正克隆到 'hy-react-web-music'...
fatal: unable to access 'https://github.com/coderwhy/hy-react-web-music.git/': Failure when receiving data from the peer

【问题】git clone 仓库 一直失败

• 切换网络，关掉代理都一直失败
• 最后清除了一下dns缓存，就成功了 （电脑是Mac）
• sudo dscacheutil -flushcache
• sudo killall -HUP mDNSResponder