Git pushing to remote GitHub repository as wrong user

Question

I have a work GitHub account and a personal one. First I used the personal one for test projects, then I moved on and did a repository with the other account on the same com

Answer 1

I had the same problem. It turns out I had two accounts on GitHub using the same SSH key and GitHub defaulted to using the wrong account that did not have permission to the repo I was after. I removed the SSH key from the account I did not to use all worked as expected.

You can test which account GitHub is authenticating yourself with:

ssh -T git@github.com

For me, this originally showed the wrong username, but after removing the duplicate SSH key from that account, it then showed the correct username and my pull and push to my repo worked well.