Ubuntu 20.04.4 LTS 更新连接失败错误

Ubuntu 20.04.4 LTS 更新连接失败错误

sudo apt-get updatesudo apt install python3-pip导致错误。

我 ping 了 Google 和 Ubuntu 更新的 IP,一切正常

更新错误

  Connection failed [IP: 185.125.190.39 80]
Err:2 http://security.ubuntu.com/ubuntu focal-security InRelease          
  Connection failed [IP: 91.189.91.38 80]
Err:3 http://archive.ubuntu.com/ubuntu focal-updates InRelease            
  Connection failed [IP: 91.189.91.39 80]
Err:4 http://archive.ubuntu.com/ubuntu focal-backports InRelease
  Connection failed [IP: 185.125.190.39 80]
Reading package lists... Done
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/focal/InRelease  Connection failed [IP: 185.125.190.39 80]
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/focal-updates/InRelease  Connection failed [IP: 91.189.91.39 80]
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/focal-backports/InRelease  Connection failed [IP: 185.125.190.39 80]
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/focal-security/InRelease  Connection failed [IP: 91.189.91.38 80]
W: Some index files failed to download. They have been ignored, or old ones used instead.

ping 相同的更新 IP

安装包错误

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