https://techcommunity.microsoft.com/discussions/microsoftteams/teams-room-systems-no-sign-in-with-kb4565351/1587005/replies/1587430
Teams Room Systems, no sign in with KB4565351 | Microsoft Community Hub
Dear all, yesterday, on our Teams Room Systems KB4565351 was installed, now they can't sign in. If we remove KB4565351, it works fine. Here are...
teams room systemssign in withmicrosoft community