This is likely to be a Chrome or Edge browser permissions issue. Follow these steps:
- Type this into the Chrome or Edge address bar to get to the mic and camera permissions: chrome://settings/content or edge://settings/content
- Click on either Camera or Microphone
- Chrome – Ensure IRIS is in the Allow list and not Blocked
- Edge – Make sure your site permissions for camera and mic are set to “Ask first” and not set to “Blocked”.