Forum Discussion I recently changed from one MS Office 365 email/organization to another. I've removed the "old" Office 365 account from everywhere I can find on my Mac, but when I launch Microsoft Teams - every time - it asks me to login with my "old" email address. When I click sign in under a different account, it goes through - but Microsoft Teams just gets stuck in the same loop. How can I fix this so I can use the desktop app with my new email/organization? Heiko1410 to atunellRTG May 01, 2020 atunellRTG I’ve got this login loop after I logged in with me private MS account in Teams. I stucken in a login loop when I tried to log with my company account in Teams. Close your Teams application and go to $HOME//Library/Application Support/Microsoft/Teams in files browser and delete/move the Teams folder to Teams_old for example. Start your Teams application, the Teams folder will created and the Login window appears. For me it works, when I delete the $HOME//Library/Application Support/Microsoft/Teams folder after I was logged in with me private MS account. Heiko Marked as Solution

I’ve got this login loop after I logged in with me private MS account in Teams. I stucken in a login loop when I tried to log with my company account in Teams. Close your Teams application and go to $HOME//Library/Application Support/Microsoft/Teams in files browser and delete/move the Teams folder to Teams_old for example. Start your Teams application, the Teams folder will created and the Login window appears. For me it works, when I delete the $HOME//Library/Application Support/Microsoft/Teams folder after I was logged in with me private MS account.