How to Fix It When a Zoom Microphone Is Not Working. Looking for: Speaker not working on zoom laptop - speaker not working on zoom laptop - Click here to ENTER If your audio or video has begun to experience problems while using Zoom, there is a fix for your situation. We can help you learn how to troubleshoot when these situations happen to you. If you are having trouble with your microphone or speakers while using Zoom on your computer, follow these steps to test your audio in Zoom. Look for your computer's audio controls and turn up the volume. If your speakers appear to be on and the volume is up, but you still cannot hear the audio, check Zoom's audio settings and select a new speaker. Click the upward arrow to the right of the Mute button at the bottom of the Zoom window. Choose another speaker from the speaker selection list and try the audio test again. If you do not see a speaker listed, this means your computer does not have any speakers connected. You wi...