Hi James. Are we screwed?
http://appleinsider.com/articles/17/03/29/tvos-102-update-requires-airplay-hardware-verification-breaks-third-party-streaming-apps
https://discussions.apple.com/thread/7904345?start=0&tstart=0
AirParrot and DoubleTwist have resolved it. Airfoil is still working on it, and recommending folks not upgrade past 10.1.1 until they have it solved.
I'd just like to mirror my linux laptop again :)