When I mirror ("fling" or "cast" a show to the tv) using my Kindle, in order to hear a show I'm trying to watch, the volume on my Kindle needs to be turned up as well. Maybe that applies to your IPad. If that doesn't work, try restarting your device. If you're still having problems, try uninstalling the app and then reinstalling it. Unfortunately you'll have to download your classes all over again. I hope this helps. Good luck.