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Why did github authentication suddenly stop working?

jean-gobert de Coster

Hi,
I've been comiting to my github repository on a sporadic schedule. Last time was about a month ago (Jan 31st)

Since then, nothing changed: my github password didn't change, I didn't even touch my git, nor sourcetree.

Today I have to commit a crucial bugfix, and when I try, I get the following error:

git -c diff.mnemonicprefix=false -c core.quotepath=false push -v --tags origin master:master
fatal: HttpRequestException encountered.
Une erreur s'est produite lors de l'envoi de la demande.

remote: Invalid username or password.
fatal: Authentication failed for 'https://github.com/jeango/TwinCATBrowser/'

Pushing to https://github.com/jeango/TwinCATBrowser
Terminé avec des erreurs, voir ci-dessus

I tried the following:

- Refresh OAuth token
- Re-create a new personal access token (and switched to basic to use that token as password)
- Update embeded git version
- Tried to push with terminal
- git credential-manager clear

None of this worked. I had to restrain myself not to drive a fist through my computer's screen

Edit: I disabled two factor authentication in github, and I could then do a push. But I don't want to disable 2 factor in the long run.

Accepted answers

jean-gobert de Coster

Just so other ppl who have this problem can easily solve it. Solution is to

1) install the latest git client (got mine here: https://git-scm.com/download/win )

2) set sourcetree to use system git (Go to "Tools > Options > Git " and click "Use System Git version")

All comments

Mike Corsaro

Hello! Please see this comment. It was caused by Github deprecating TLS 1.1 support, which means that all older versions of git (versions released before Jan of this year...) won't be able to connect using the Git Credential Manager for Windows. Github decided not to inform us, or otherwise email any developers about this change, so we had no idea that it was going to happen. Sorry about that!

jean-gobert de Coster

Just so other ppl who have this problem can easily solve it. Solution is to

1) install the latest git client (got mine here: https://git-scm.com/download/win )

2) set sourcetree to use system git (Go to "Tools > Options > Git " and click "Use System Git version")

miguelfor

This worked for me, Thanks.

Sam Leatherdale

I also had to install the latest version of the Git Credential Manager:

https://github.com/Microsoft/Git-Credential-Manager-for-Windows

Sunil Raman

@Sam LeatherdaleThanks, this fixed the issue with command-line git bash on Windows and Bitbucket repositories, since even the latest stable Git download apparently ships with an older Git Credential Manager.