Knowledge Base / Software / Teams Audio or Video Not Working
Problem
Practical checks for Teams audio or video not working. Follow the safe steps below and contact your support team if the issue continues.
These are general troubleshooting checks, not a confirmed diagnosis. Follow your organization's procedures and stop if a step could risk data, safety, or managed equipment.
Symptoms to check
- Audio is muted, lagging, or absent, or the camera is black or disconnected.
- The issue may affect a single user or a group of people in one meeting.
Possible causes
- Microphone, speaker, or camera permissions may be blocked by the operating system or browser.
- Outdated drivers, poor connectivity, or meeting policy restrictions can also affect Teams calls.
Resolution
- Check whether the device is using the correct microphone, speaker, and camera in Teams settings. Confirm that the device is not muted and permissions are allowed in the operating system or browser.
- Test the device outside the meeting by using a quick call or the Teams device settings. If the hardware works elsewhere but not in Teams, review app permissions and updates.
- Restart the meeting app, then restart the computer once if needed. Update Teams from the official Microsoft source before retrying.
- Check the network quality. If many users are affected, review whether there is a service issue or a recent meeting policy change.
- If the problem continues, capture the exact error, meeting time, and device model, and escalate to support with the troubleshooting steps you already tried.
Prevention and preparation
- Keep the Teams app updated and test microphone and camera before important meetings.
- Use approved headset and webcam devices to avoid hardware compatibility issues.
Related guides
Still not fixed? Log a support request and include the exact error, who or what is affected, and the steps you already tried. Never include passwords or verification codes.
Submit a ticketLast reviewed: October 2026