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Microsoft Teams device help

Test your setup before changing Microsoft Teams.

Use DeviceOK to establish whether the browser can see and use the hardware, then check Teams device selection, browser permission, OS privacy controls and organization policy.

Test first

Prove the hardware path

Microphone TestCheck whether your browser can detect your microphone and receive live audio.

Webcam TestOpen your webcam locally to verify that the browser can access and display a live camera stream.

Left Right Speaker TestPlay left and right channel tones separately.

Screen Share TestVerify that your browser can open the screen/window/tab sharing picker and start a local capture stream.

Common problems

Go to the closest symptom

Teams microphone not workingUse DeviceOK evidence to narrow the cause.

Teams camera not workingUse DeviceOK evidence to narrow the cause.

Teams speaker not workingUse DeviceOK evidence to narrow the cause.

Teams web device permission problemUse DeviceOK evidence to narrow the cause.

Focused problems

Device-specific Microsoft Teams troubleshooting

Microsoft Teams Microphone Not WorkingTest the microphone outside Teams, then isolate Teams device selection, browser/app permission, OS privacy controls or organization policy.

Microsoft Teams Camera Not WorkingVerify the camera can stream independently, then check Teams camera selection and the permission layers that apply to Teams desktop or web.

Microsoft Teams Speaker Not WorkingCheck whether browser audio reaches the output device before changing Teams audio settings.

Microsoft Teams Web Camera or Microphone PermissionTeams on the web can require permission at more than one layer: Teams/app permission, browser site permission and sometimes organization policy.