Instructions in this article apply broadly to all devices capable of running Microsoft Teams.
Search X (formerly Twitter) for#microsoftteamsdownand#teamsdown.
Use another third-party “status checker” website likeDowndetectororIs The Service Down.

If no one else is reporting issues with Microsoft Teams, then the problem likely lies on your end.
verify you’ve logged into Microsoft Teams correctly, either via the website or the app.
If you’re unable to access Microsoft Teams from the app, try using the website or vice versa.

Check to see if it will work on your smartphone or tablet instead of your PC or Mac.
Scan your box for malware.
power cycle your system.
It’s unlikely, but there could be an issue with yourDNS server.
Try using Microsoft Teams with a web proxy or VPN.
If none of these solutions have worked, you may be dealing with an internet issue.
Contact your ISP to request further help.