How can I fix my Teams login issue?

amy low 0 Reputation points

I am trying to activate teams but I am getting this error.
How do I resolve this error?
Please help.

Microsoft 365
Microsoft 365
Formerly Office 365, is a line of subscription services offered by Microsoft which adds to and includes the Microsoft Office product line.
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Microsoft Teams
Microsoft Teams
A Microsoft customizable chat-based workspace.
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Office Mac
Office Mac
Office: A suite of Microsoft productivity software that supports common business tasks, including word processing, email, presentations, and data management and analysis.Mac: A family of Apple personal computers that run the macOS operating system.
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  1. S.Sengupta 16,571 Reputation points MVP

    What error are you getting?

    Try these steps to troubleshoot this problem:

    Clear client cache by deleting the content in %appdata%\Microsoft\Teams folder

    Remove Teams credentials in Windows Credentials > Choose Windows Credentials > Remove all entries with a line meteams_

    Update your client to the latest version.

    You may try to login to another machine to check the issue.

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  2. LiweiTian-MSFT 15,675 Reputation points Microsoft Vendor

    Hi @amy low

    To help you resolve this error, I need to know the error code that you are getting. You can find the error code on the Teams sign-in screen. It usually starts with 0x followed by some letters and numbers. For example, 0xCAA20003 or 0xCAA80000. Can you please tell me the error code that you see?

    You can also use the following steps to troubleshoot the problem:

    Contact your admin to use the diagnostic tool in the Microsoft 365 admin center.

    If the diagnostics didn't detect any issues, but you still can't sign in to Teams, or you don't have a Microsoft 365 admin account, select Download SaRA and start the test automatically.

    In addition, you can also try to fix the problem manually according to the method provided in this document

    If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".

    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

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