Get this identity error from GitHub occasionally when trying to push to a local branch (on my dev machine) to an origin branch (on the the server).

Searched the web and found the following fix that clears cached GitHub credentials:

1. Open Credential Manager on your dev machine
2. Click on Windows Credentials under Manage your credentials
3. Under Generic Credentials, click on GitHub
4. Remove the Generic Credentials for GitHub
5. Retry the operation.
6. You should be prompted for a credentials.
7. Input your credentials and you should be good to go.