Additional features, settings, or issues not covered by specific Microsoft Teams categories
I faced the same login issue with MS Team desktop client, with error code - caa30194
Uninstalled , the couple of reset done - nothing worked. Finally change the compatibility mode:
- Right click MS Teams app icon and open the 'Properties' window.
- Under 'Compatibility' tab, check the 'Run this program in compatibility mode for:' and select Windows 8
- Click Apply and Click OK.
This helps to resolved my teams issue. :)
Hope this can help you too.
Thanks a lot . It worked for me