Github authentication not working on windows while doing fine on MacOS

[Carvin]

Hello Everyone, 

We recently enabled the SSO on github, since then we are unable to add a working account on sourcetree in Windows, the user cannot push or see the organization's  repositories.

We are using the latest version, 4.2.11; since the SSO is enabled on github we are using the HTTPS Protocol with the PAT. 

Either a new PAT or and existing one don't seems to work and we receive the error "Login Failed - Authentication failed for Github with username XXXXX - please check your account settings" 

Here where things get strange, if we try to use the same identical configuration on a MacBook we are able to connect to Github, pull and push with no issue. 
The same account and PAT on Windows return "Login Failed"

Any idea on what might be different between the two OS making so that the login works on MacOS but not on Windows? 

[Brant Schroeder]

@Carvin welcome to the Atlassian community

Did you take a look at this https://support.atlassian.com/sourcetree/kb/two-factor-authentication-2fa-with-github-in-sourcetree/