I am unable to run any commands against my remote repository at Visual Studio Team Services (VSTS) because authentication fails.
I am able to do pulls, etc. through
On Windows, you can easily create a Personal Access Token using the Git Credential Manager. It's what Visual Studio Team Services now seems to recommend over the Alternate authentication credentials.
Just install that utility, and then the next time you git pull from Git Bash, it will prompt you for your Visual Studio Team Services access credentials. It will then create a Personal Access Token in your VSTS account, and add a couple of entries to your local Windows Credentials store.
Quote from the site:
It magically works when credentials are needed. For example, when pushing to Visual Studio Team Services, it automatically opens a window and initializes an oauth2 flow to get your token.