I am sorry, the Roku Premiere Model # 3920RW, Firmware version 10.0.0- Build 4209-91 (The current firmware) and my MacBook air also is up to date. The airplay feature in Roku was working fine until a week ago, or so. I can stream music, but no videos, which I was able to do before. I restarted both devices and still nothing. Just streaming sound.