Airplay mirroring from iPad2 (or OSX using airparrot) to AppleTV(3), mirrored image appears on the TV briefly, then will crash back to AppleTV home screen after about 20-30 seconds. Tried both wired / wireless network setup to AppleTV.......with wireless going over 5GHZ band. Also tried complete restore to factory defaults / software upgrade.
Are there specific ports that might need to be opened to the AppleTV through my router to enable traffic between the devices? Also, wireless interference should not be an issue, as I tried using 5GHZ N-band for the devices when i set them up both wirelessly. Any ideas?