Ever since the latest Apple TV software update (Apple TV Software 5.0 (4099)) my home share has been disconnecting in the middle of playing movies, or TV shows. I have updated my iTunes software, running 10.6. I'm just irritated, I rent a movie from iTunes and about 15 mins into the movie home share disconnects. My laptop is not going to sleep, I have my energy settings set so that it never goes to sleep while I'm trying to watch a movie. Any advice or any word on if Apple intends to fix this problem would be appreciated. It is also happening to my roommate and her Apple TV. Thank you.
Intermittent problems are often a result of interference. Interference can be caused by other networks in the neighbourhood or from household electrical items.
You can download and install iStumbler (NetStumbler for windows users) to help you see which channels are used by neighbouring networks so that you can avoid them, but iStumbler will not see household items.
Refer to your router manual for instructions on changing your wifi channel or adjusting your multicast rate.
There are other types of problems that can affect networks, but this is by far the most common, hence worth mentioning first.