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I currently am working remotely and we use teams to communicate within our office. Teams has given intermittent troubles. It will not allow me to login sometimes. When this happens I have to uninstall and reinstall the application, now that won't work at all. I like to run the teams app on my local computer while using work vpn. Currently using the web app to work. Even an uninstall and reinstall will not work. Please help.
Error code - caa70004
There's a more permanent way to sign in to Microsoft Teams. If you're having trouble completing the process, talk to your IT admin
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Settings > Accounts > Email & Accounts
Add the correct account.
MFA
Restart Teams
Settings > Accounts > Email & Accounts
Add the correct account.
MFA
Restart Teams
Uninstall Teams, restart, reinstall Teams, launch Teams and then Outlook.
I had this same Issue. VPN in from home computer, but teams will not sign in. To resolve I removed teams from my system and reinstalled via this link.
https://www.microsoft.com/en-us/microsoft-teams/download-app#desktopAppDownloadregion
I downloaded the file version that is for work or school. And installed. It opened without even asking me to sign in. I think this is because my work credentials are linked in my settings > accounts > School and work accounts in windows. Hope this helps someone!
I have done that as well. But again no clue.
Even I have cleared the %appdata%\Microsoft\teams .. still, I am not able to log in to it.