After you have clicked the Mic or the Cam button, and neither your camera nor microphone are working, you may need to click allow within your browser's address bar. Each browser is a bit different. Just make sure you are choosing to allow BigMarker access.
(*We highly recommend you use the latest version of either Chrome or Firefox. If you are a presenter, it is imperative to use one of those two browsers.)
For Firefox it will appear on the left side of the address bar like this:
For Google Chrome it will appear on the right side of the address bar like this:
For Safari it will appear to the right side of the address bar like this:
For Edge it will appear on the left side of the address bar like this: