Troubleshoot audio and video devices
The use of audio and video devices in Teams is important for a rich user experience. However, users can occasionally experience problems with audio and video device configuration.
Verify Teams policy settings
Before you investigate specific device configuration, verify the any policies assigned to a user don’t prohibit the use of audio or video. For problems in meetings, a good place to start is by reviewing the Audio & video policy settings.
Open the Microsoft Teams admin center, and review the Audio & video section of the appropriate meeting policy, as shown in the following screenshot.
Ensure that the Mode for IP audio and Mode for IP video are both enabled. Also ensure that Allow IP video is enabled.
If video quality is poor, increase the Media bit rate (Kbs) value.
Verify network settings
Specific network ports must be accessible in Teams. These can be reviewed or managed in the Meeting settings page in the Microsoft Teams admin center. Ensure that the audio and video ports are available.
Verify audio and video device configuration
If you’ve verified that the policy configuration is correct, then you can move on to examine the device configuration. Start by verifying if the audio and video devices installed in the user computer work in other apps. If they do, then the problem might be related to the Teams client only. If not, then start by troubleshooting the devices in Windows.
To troubleshoot audio devices in Windows:
- Open Settings and then select Devices. Verify the presence and functionality of the devices.
- Then, in Settings, select System and then select Sound.
- Adjust volume and input levels, and if necessary, select the Troubleshoot button beneath each device.
To troubleshoot video devices in Windows:
- In Settings, in search, enter camera, and then select Choose which apps can access your camera.
- Ensure that under the Allow access to the camera on this device setting heading, Camera access for this device is on. If not, select Change, and toggle the setting to On.
- Scroll down to the Allow desktop apps to access your camera section, and verify that Microsoft Teams is listed.
If your devices don’t display properly in Settings, consider advanced troubleshooting in Device Manager. Use the following procedure to troubleshoot audio and video devices in Device Manager:
- Right-click Start and select Device Manager.
- Locate Cameras, and then select your camera in the device list.
- If the device shows as in error, remove the device and then scan for hardware changes. The device will be detected and the driver installed from the driver store.
- Right-click the device and select Properties.
- On the Driver tab, if the driver has been recently updated, consider rolling back the driver. Alternatively, if the driver is quite old, consider updating the driver.
- In Device Manager, under Sound, video, and game controllers, repeat the preceding steps for the displayed audio device.
If the audio and video devices work with Windows and with other Windows apps, then review the audio and video devices settings in Teams:
- In Teams, select the ellipsis button and then select Settings.
- Select the Devices tab, as displayed in the following screenshot.
- Verify that the correct audio and video devices are selected.
- If necessary, make a test call.
- Close Settings.
Resolve issues with 4K/UHD monitors
Overall Teams performance can be impacted on laptops that are docked to external 4K or UHD monitors. If your users experience this problem, consider performing one or more of the following tasks:
- Close any other apps and unused browser tabs
- Reduce the resolution of the monitor temporarily to 1920 x 1080
- Undock from the UHD monitor
- Turn off the webcam
- Turn off incoming video during the meeting