Forum Discussion
MS Teams return error code caa90017
For our issue, we found all of our errors of caa90017 were related to recent Teams updates, and Windows not being up to date - they were all running 1909 or later. An update to the latest Windows release later, and our problems went away. Prior to that, we had tried uninstalling Teams, removing the entire Teams folder and cache, reinstall, remove work or school accounts, etc. and it would, at best, get us a day or two before the issue came back. Updating Windows is what is solving it for us.
I solved this error by closing Teams, going into %appdata%\Microsoft directory and renaming Teams folder (to "Teams.old" for example). When I opened Teams again, it failed and restarted. After that, Teams worked.
glaucio It "solves" it until you reboot your computer or teams restarts itself for an update then it happens again.
- Jonathon Luken Is there any account connected on Settings > Accounts > Access Work or School ? Have you tried disconnecting it?
- nope no account there or in cred manager.