Laptop screen showing a video meeting with many participants in a grid
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Almost everyone who attends online meetings has experienced it: someone cannot hear, the video freezes, or a shared screen will not appear. Most issues are common, and most have simple fixes if you work through them in an orderly way.

This guide gives you a step-by-step approach and a list of specific problems with likely causes and solutions. It is independent of any particular meeting platform, though menu names differ between them.

Independent guidance

Teams Knowledge does not provide technical support for any software. For problems specific to a product, consult that vendor's official documentation or your organization's IT support team.

A General Troubleshooting Method

Follow the same sequence each time, from simplest to most involved:

  1. Identify the symptom precisely. "Cannot hear anyone" and "others cannot hear me" are different problems.
  2. Check the basics. Is the device muted? Is the correct microphone or speaker selected? Is your internet connected?
  3. Change one thing at a time. That way you know what worked.
  4. Try leaving and rejoining. This resets your connection to the meeting.
  5. Switch to a backup. Join by phone audio or from another device, if available.
  6. Escalate. Contact the meeting host or IT support with the details of what you tried.

Problem: Others Cannot Hear You

  • Check that the microphone is not muted in the application, on your headset, or on the device itself.
  • Open the audio settings in the meeting software and make sure the correct microphone is selected.
  • Check your operating system's privacy settings to ensure the application is permitted to use the microphone.
  • Unplug and reconnect a USB or Bluetooth headset, or switch to the laptop's built-in microphone to test.
  • Close other applications that may be using the microphone.

Problem: You Cannot Hear Others

  • Check device volume and the volume within the meeting application.
  • Confirm that the correct speaker or headphones are selected as the output.
  • Bluetooth devices may have connected to a different device, such as your phone. Disconnect and reconnect.
  • Test with a different headset to isolate whether the problem is hardware.
  • Ask a colleague whether the speaker is actually unmuted; sometimes the issue is on their end.

Problem: Echo or Feedback

Echo usually happens when one participant's microphone picks up audio from another person's speakers, sending it back into the meeting.

  • Ask people to use headphones or a headset.
  • If two people are in the same room on separate devices, have only one device's audio active, or mute the extra microphones.
  • Lower speaker volume if you cannot use headphones.
  • Ask people who are not speaking to stay muted. The facilitator can often identify the source by asking participants to mute one at a time.

Problem: Choppy Audio or Frozen Video

This typically points to a bandwidth or network stability issue.

  • Turn off your own video temporarily. Audio uses far less bandwidth, and keeping audio smooth is more important than video.
  • Close other applications that use the network, such as large downloads, cloud backups, or streaming services.
  • Move closer to your wireless router or, if possible, connect with a network cable.
  • Ask others in your household to reduce heavy network use during important meetings.
  • Restart your router if the problem persists outside the meeting as well.
  • If your meeting software offers a lower-quality or audio-only setting, try it.

Problem: Camera Not Working

  • Check that the camera's physical privacy shutter, if it has one, is open.
  • Select the right camera in the meeting software's video settings.
  • Check your operating system's privacy settings to ensure the application can access the camera.
  • Make sure no other application is currently using the camera. Only one application can usually access it at a time.
  • Restart the meeting application, then your computer if necessary.

Problem: Screen Sharing Does Not Work or Shows Black

  • Verify that you have permission to share. Hosts may limit sharing to presenters.
  • Operating systems sometimes require you to grant screen-recording permission to the meeting application. After granting it, you may need to restart the application.
  • If sharing a single window shows black, try sharing the entire screen, or the reverse.
  • Certain protected content, such as some video players, may not appear when shared.
  • Before sharing, close private documents and silence notifications so that nothing sensitive appears.

Problem: Cannot Join the Meeting

  • Verify the link or meeting ID and passcode.
  • Check whether the meeting has a lobby or waiting room, and wait for the host to admit you.
  • Try a different browser or the desktop application, if both options exist.
  • Clear your browser's cache or try a private browsing window.
  • Confirm that your organization's policy allows you to join from your current network or device.
  • Ask the host to confirm that the invitation included you and that the meeting is not restricted.

Prevention: What Hosts Can Do

  • Join early and test audio and screen sharing.
  • Have a co-host who can help participants while you present.
  • Share a backup way to join, if your platform supports it.
  • Remind participants at the start to mute when not speaking and to use headphones.
  • Share key materials in advance in case sharing fails.

For comprehensive pre-meeting steps, see How to Prepare a Productive Virtual Meeting.

Common Mistakes When Troubleshooting

  • Changing multiple settings at once, so you do not know what fixed it.
  • Assuming the problem is your device when it is the host's configuration, or vice versa.
  • Staying silent about a problem instead of notifying the host.
  • Waiting until the meeting starts to install or update software.

Frequently Asked Questions

Why does my video freeze but audio keep working?

Video needs more bandwidth than audio, so poor connections often affect video first. Turning your own camera off, closing other network-heavy applications, or moving closer to the router can help.

What should I tell IT support when I report a problem?

The time of the problem, what you were doing, the exact symptom, the device and operating system, whether it happens with other applications, and what you have already tried.

Conclusion

Most online meeting problems come down to audio devices, network quality, or permissions. By working through a simple sequence, from checking the obvious settings to switching devices and escalating clearly, you can resolve many issues quickly. Preparing in advance and agreeing on a backup plan prevents the rest from derailing important discussions.

Independent educational content. Teams Knowledge is an independent educational resource. It is not affiliated with, endorsed by, or sponsored by Microsoft Corporation. Product names and trademarks belong to their respective owners. This article is general information, not professional advice. See our Disclaimer.