Fedora 33更新异常，提示如下：

[root@localhost Workspace]# dnf update
Fedora 33 - x86_64 - Updates                                                          0.0  B/s |   0  B     00:00    
Errors during downloading metadata for repository 'updates':
  - Curl error (7): Couldn't connect to server for https://mirrors.fedoraproject.org/metalink?repo=updates-released-f33&arch=x86_64 []
Error: Failed to download metadata for repo 'updates': Cannot prepare internal mirrorlist: Curl error (7): Couldn't connect to server for https://mirrors.fedoraproject.org/metalink?repo=updates-released-f33&arch=x86_64 []

解决办法，直接重启一下，问题立即消失。。可能是网络问题吧，感觉有点莫名其妙的。。。