​
Problem:

I have the local git repository which is set up to track the remote git repository. I have changed the password of the remote git service. Then trying to push the change from local to the remote repository. I got the below issue.
fatal: Authentication failed for ‘https://git.example.com/test.git
fatal: Authentication failed for "repo url"

​
Solution:

You have to update the remote repository password details in the credentials manager.
  • Search for “Credential Manager” in the start menu and open.
  • Click “Windows Credentials”
  • Find the git remote repo and edit the password with the latest password.
If you try the git command again, it should work without any issues.