I keep getting the following message when I try to connect my Mac to my apple tv, using airplay: "This AirPlay connection requires iOS 7.1 or later, OS X 10.10 or later, or iTunes 11.2 or later." Up until just recently, I have been able to use AirPlay just fine. I have gone through several steps, checking for updates, checking that they are on the same network, turning things off and on, etc., but I still can not get it to work. Help!
