Microsoft Teams for Mac: login fails with endless loop

I wanted to use the Microsoft Teams app on macOS to login to my personal Office 365 account, but I recently used it to login to my corporate account. That did not work out very well: Teams got into an “endless loop” asking me to sign in over and over again. It looks like Teams has some issues when switching between different accounts.

I got this solved by opening Keychain Access, and deleting the entry called Microsoft Teams Identities Cache. After that, I could sign in to Teams again with the correct account.

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One thought on “Microsoft Teams for Mac: login fails with endless loop”

  1. thank you very much – this solved my problem.

    I previously used Teams on macOS on a different Office 365 tenant, and there must have been some stored credentials in KeyChain that were causing a login loop.

    Nice one!

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