GitHub Copilot could not connect to server

Posted on In Disqus:
GitHub Copilot could not connect to server. Extension activation failed: "connect ECONNREFUSED 127.0.0.1:443"

I'm currently back in China and found that I couldn't use GitHub Copilot in vs code. Every time I try to activate it I would get the following error:

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GitHub Copilot could not connect to server. Extension activation failed: "connect ECONNREFUSED 127.0.0.1:443"

The issue is that the DNS is not set up correctly and GitHub Copilot is trying to connect to the wrong server. There are two solutions to fix this.

  1. Change DNS to Google's DNS (8.8.8.8) and use Aliyun's DNS as backup (223.5.5.5)

  2. Add the following line to the hosts file:

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140.82.112.5 github.com
140.82.112.5 api.github.com

Another cause of this problem is for those who have installed Watt Toolkit, it modifies the hosts. So just delete those lines in the hosts file and it should work.

# Extra tip: GitHub Copilot is free for verified students

Reference

https://blog.csdn.net/qq_42200700/article/details/125784101 https://zhuanlan.zhihu.com/p/522807476