I use Git and GitHub using the default Git Credential Manager (GCM) on my Windows 10 machine without any problems. Now, I installed Git with the same setup (all the default settings) on my 2 Windows 7 machines and git is working.
When I try to clone or push to any of my own private repositories I am asked by the GCM to authenticate (sign in with browser). Just before the browser opens I get a message in the CMD fatal: access denied. Then the browser opens with an authentication link as expected and immediately goes to a 127.0.0.1 (local?) address where I see ERR_CONNECTION_REFUSED in Google Chrome.
The command prompt:
C:\Users\<Username>\Directory> git --version
git version 2.41.0.windows.3
C:\Users\<Username>\Directory> git credential-manager --version
2.2.2
C:\Users\<Username>\Directory> git config --global user.name <username of GitHub account>
C:\Users\<Username>\Directory> git config --global user.email <email of GitHub account>
C:\Users\<Username>\Directory> git clone https://github.com/<username>/<repository-name>.git
Cloning into '<repository-name>'...
info: please complete authentication in your browser...
:: until here everything was as expected ...
fatal: Access denied
:: AFTER the access denied message the browser opens and fails to load the page I expect
:: Then Git asks for username and password which were deprecated in August 2021 (It does not matter whether I try to log in using username and password or not)
Username for 'https://github.com':
Password for 'https://github.com':
remote: Repository not found.
fatal: Authentication failed for 'https://github.com/<username>/<repository-name>.git'
Above I used :: for comments which I added after I copied my CMD output.
Git version 2.41.0.3 comes with GCM 2.2.2.
I tried this with Google Chrome and Microsoft Edge while logged in in GitHub and while not logged in. As well as in a guest window in Google Chrome and Microsoft Edge. All with the same result.
According to this post Windows 7 should still be supported, but cloning a repository or pushing to the remote is impossible. I have no problems when running this on my Windows 10 machine.
See GitHub Git Ecosystem - Git Credential Manager issue with full logs using GIT_TRACE=1 and GCM_TRACE=1.
ChatGPT did not yield any useful results.
