Error Code: 50126

Question

Error Code: 50126 Request Id: 8c3b223c-7fcf-4c71-8de8-3aecebc80e00Correlation Id: 37f62a48-1553-40e2-a829-50ea167414e2 Timestamp: 2024-08-29T10:08:40.926Z

I can't log into my Teams account for study. What I tried and what didn't help:

-Log in through two different browsers.

• Install the computer app and the phone app and log in through them.
• Clear the application cache and clear the data in the browser.
• Technical support from the university reset the password twice, but after the reset I still couldn't log in and the exact same problem appeared.
• Tried disabling the antivirus and ad blocker.
• Tried running the application and the page in the browser with and without VPN.

The error appears even at the login stage, on the computer or phone application, the error appears after entering the login and password.

I can't continue my studies because of this, I'm in my final year, please save me.

Answer 1

Dear Einora

Good day!

Thank you for posting to Microsoft Community. We are glad to assist!

Based on your description, I understand you concern with unable to access your account due to error 50126.

You may have a try to do following troubleshooting to narrow down your issue:

May I know whether you have the same when you tried to login to other Microsoft products or only in Teams?

If your account is a federated account, it might require redirection to ADFS for authentication. The ROPC (password) flow doesn't support this redirection and tries to authenticate the user directly in Azure AD, which can cause this error. You may need to contact your IT admin to check this.

Clear Cached Credentials: You may have a try to clear the credential in your computer. Search for “Credential Manager” in the Start menu, open it, and remove any cached credentials related to Microsoft Teams.

I look forward to your response.

Please note that our initial response may not always resolve the issue immediately. However, with your help and more detailed information, we can work together to find a solution.

Thanks for your precious time and your understanding would be highly appreciated. Have a nice day!

Best regards,

Allen | Community Moderator

Answer 2

Thank you very much for your reply, but unfortunately none of these methods helped. The university technical support specialists have already reset the password (twice) and said that they checked everything on their side and everything should be fine. I also cleared Cached Credentials. The error does not change, on the computer it looks like this (I am adding a screenshot below, it says: "such an account does not exist. Enter another account or get a new one." But I am literally writing this from this same account now, and I can use, for example, Outlook mail from this account, and I receive notifications from Teams from this "non-existent" account, but I cannot log into Teams itself.