I’m dizzy. I don’t know how this problem happened today

git config --global http.proxy http://127.0.0.1:1080

git config --global https.proxy http://127.0.0.1:1080

The problem has been solved

Cancellation of agency

Cancel global proxy.
git config --global --unset http.proxy

git config --global --unset https.proxy

I can’t remember how many times I’ve dealt with this kind of problem

failed to connect to github.com port 443

Solution: first switch the child to the global, then cancel, then cancel the global agent, and finally git pull or git push

What is the cause of the problem?

After many years (15:19:34, March 15, 2021), we encountered this problem again

(1) Cancellation of agency

git config –global –unset http.proxy

git config –global –unset https.proxy

(2) Success!