
Fix Microsoft Teams Modern Authentication Failure
When Microsoft Teams shows 'We couldn't sign you in' or 'unable to authenticate with modern authe...
Software troubleshooting desk

When Microsoft Teams shows 'We couldn't sign you in' or 'unable to authenticate with modern authe...

You try to sign in to Chrome or start syncing, but you get error code 0x80040201. Bookmarks, pass...

You try to activate Windows, but see 'Activation service unavailable' or 'We can't activate Windo...

You've set up Remote Desktop on a Windows PC and signed in with your Microsoft account, but when ...

When you try to connect to a remote PC and see "Connection refused" or "The connection was refuse...

You open Remote Desktop, enter the computer name, and get either "Connection refused"