Just created a new campaing and all of my previous players are having the same problems. Nobody can see / hear each other including myself. I checked all the settings on every ones machine Audio/ Video input source is correct, they have broadcast and receive voice and video selected, chat tech is set to roll20WebRTC (chrome+FireFox). We have run through all of the video and audio troubleshooting steps in the help wiki. Cameras are up and running, and they can see themselves. We have done numerous restarts made sure that nothing else is running in the background got rid of extensions in our browsers but still no audio and video. Strangely enough it works when we revisit the old campaign. I have the settings duplicated though so I am out of ideas as to why this isnt working.