I have the latest MacBook Pro, the latest OSX and iTunes, ATV2 with the latest update and a Time Capsule. My Time Capsule provides a wireless network for my laptop. I have my ATV2 connected to my Time Capsule via an ethernet cable. I have my ATV2 connected to my TV via HDMI and my TV connected to my home stereo via a fiber optic cable. My favorite thing about this setup is being able to listen to my music on my stereo and the sound quality is great (though it is a little annoying that I have to have my TV on to do it). I'm not sure when it stopped working, but I am no longer able to play a song on my iTunes while using my MacBook Pro and have it play via AirPlay-to-ATV2 on my stereo. When I cue up the song and choose "Living Room Apple TV" from my list of options in iTunes, iTunes gets stuck "Connecting to Apple TV". And it never connects. Now the weird thing is, if I go to my Apple TV and choose Computers and go to my music library, I can play whatever songs/playlists/etc in my iTunes. I can also use the Remote app on my iPhone to choose my songs (which was great during my party on Saturday). But if I am just sitting at my laptop, I can't ask my laptop to directly send the song to the ATV2. So it's working in one direction but not the other. Any ideas? Is it because I have my ATV2 tethered to my Time Capsule via the ethernet cable? Should it be all WiFi? I really don't know what has changed. What am I doing wrong? I have Home Sharing turned on and I have AirPlay turned on. As far as I can tell, everything is set properly.