Microsoft 365 Alert – Service Degradation – Microsoft Teams – Some users’ Microsoft Teams clients may freeze when attempting to access the Teams menu in the sidebar – RESOLVED
22/04/2024 08:41:00 AM
NHSmail Reference: INC42568805
Microsoft Reference: TM775487
Issue Status: RESOLVED
Issue Description: Users’ Microsoft Teams clients may freeze when attempting to access the Teams menu in the sidebar.
More info: Users receive an unexpected error message stating “You don’t have access to this channel. Contact the owner … to get access.” despite having proper permissions. Please note that if users don’t receive this error message, it’s not related to this event and needs to be investigated independently.
This can affect users on both the web and desktop clients running the new Microsoft Teams. While Microsoft are focused on remediation, users may able to avoid impact by utilizing the classic Microsoft Teams experience.
Impacted users may be able to resolve the frozen client issue by proceeding with the following steps:
1. Sign out of Microsoft Teams.
2. Completely close out of the Microsoft Teams client by right-clicking on the system tray and hitting “Quit Teams”, or by closing the browser window.
3. Reopen the Teams client and sign back in.
Final Update: 29/04/2024 08:41:00 AM – Microsoft completed their deployment of the fix to the affected environments, and they have verified with affected users that this solution has successfully remediated the problem.
Scope of impact: Some users attempting to access the Teams menu through the sidebar in the new Microsoft Teams web and desktop clients may be impacted.
Root cause: A recent service update introduced an issue where users’ default channel information isn’t being called as expected in the new Microsoft Teams, resulting in impact.
Next steps: Microsoft are investigating how the recent service update introduced an issue where users’ default channel information wasn’t being called as expected in the new Microsoft Teams to prevent this problem from happening again.
