Here are some steps to try if you cannot join a Teams meeting from a different device:

1. Check that the device you are using is on the list of Teams-supported devices.
2. Make sure your device is running the latest software available.
3. Test your network speed to make sure it is fast enough to handle a Teams meeting.
4. Check if your camera, microphone, and speaker settings are correct.
5. Verify that any firewall, proxy, or antivirus settings are not blocking Teams.