Image of the exact problem
Remote URL test failed: Authentication failed for ...
Why does IntelliJ refuses to add this URL and does not even ask me for my credentials (login/password)?
Image of the exact problem
Remote URL test failed: Authentication failed for ...
Why does IntelliJ refuses to add this URL and does not even ask me for my credentials (login/password)?
Check if you have a credential helper (set to manager)
git config credential.helper
That could have cached the wrong credentials, and would be automatically picked up by Git within IntelliJ.
You would need to remove the entry for that remote in the Windows Credential Manager, as shown here.