can’t login Teams


This only happened a few days ago, and several of our colleagues were unable to log in to Teams. There have been no issues before. We need to use Teams to contact customers. Now, how can we solve this problem?

Microsoft Teams
Microsoft Teams
A Microsoft customizable chat-based workspace.
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  1. Kael Yao-MSFT 31,506 Reputation points Microsoft Vendor


    If this issue only occurs on several users, I would suggest first checking if the licenses of the users are expired as Patchfox mentioned.

    You can also use the Teams diagnostic tool to check what may be the cause.

    Sign-in test direct link:

    (You may need to use an admin account which has access to Microsoft 365 admin center)

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