I have an Apple TV on which I am able to stream videos, music etc from my iPhone without any issues using AirPlay.
But when I try to stream video or music from my work XP laptop using iTunes, I get an error saying -
*+"An error occurred while connecting to the AirPlay device "Apple TV". The network connection timed out. Make sure the AirPlay device is powered on and its network settings are correct, then try again."+*
Note that I have already enabled home sharing in iTunes on the computer and also enabled AirPlay on Apple TV.