Getting “fatal: Authentication failed” -error when sending git commands in Windows 10

Question

After updating domain password, accessing git-repo is no longer possible. VS Code and Source Tree as well as Visual Studio are returning the following error message on pull, pus

Answer 1

Using Git for Windows (2.30.0), with the cross platform credential manager, with the remote set as a https GitHub address, to a public repository, doing git push by itself wasn't sufficient.

Instead I had to explicitly do git push origin main (replace main with master, or whatever your branch is) to have Git for Windows load a GitHub authentication page where I could authorize the application.

Creating a personal access token, as noted in another answer, was not necessary. Windows credentials were not present in Windows Credential Manager, but were added as Generic Windows Credentials via this method.