iTunes Library through Home Sharing dissappears from devices
It's been discussed in several threads, but mainly is described as a network or AppleTV problem, while it's not. It's a simple problem:
Every time a device (AppleTV or Remote app) stops using Home Sharing for a moment, that device stops seeing the PC iTunes library anymore. You have to go to the PC, turn off the home sharing, although it says it's on, then turn it on again. Then iTunes is back in the list. Until next time you stop playing for a while or just close the remote app.
Then it goes away again.
It's even by device.
For example:
Restart Home Sharing, so my iTunes Library is well visible on AppleTV and Remote App.
Then start playing a movie on AppleTV and play with the Remote app
Close the remote app in the iPhone. Reopen it. iTunes is missing now - Home Sharing needs to be restarted to reappear. In the meantime AppleTV still sees it, as the movie never stopped.
That is ridiculous behaviour and started with latest iTunes update few days ago. However I downgraded to 11.1.0.126 and it didn't help.
My system is iTunes 11.1.2.31 on Win7 Pro. I can reproduce that issue 100% of the tries