iTunes Shared Libraries Not Working?

I'm seeing similar problems. For me, the progress indicator gets to about 50% then freezes. Maybe they're trying to push everyone towards iTunes Match. This is on both my iPod Touch 4th Gen and iPad 2. It looks to work OK on my iMac connecting to the shared library on my Mac Mini, so it looks to be an iOS 6 problem.

Problem with iTunes Sharing on iPad

I have had similar problems with shared TV Shows on the iPad. Perhaps this may help out. It worked for the TV Show problems I was having. Simple fix, worth a try. The fix involves resetting the Video/Music cache on the iPad.

See these instructions http://helpdeskgeek.com/help-desk/wrongincorrect-album-art-on-shared-itunes-library/

Good luck,
Charlie

Same problem on iphone4s and 5. . Hard reboot on phone always works to bring all Artists list back up. Weird how it shows every album and song but only 15 artists. Sucks to have to reboot every time. Started a few updates ago.

There are major problems with home sharing from iTunes.
The Apple forum has a long thread about it but no one from Apple ever visits that forum to help on any subject. I wonder why its there.
Nice support.
Home sharing, among other things, doesn't "just work".
Home sharing library doesn't show up in my iTunes (Windows 7) on two different laptops. (It did for a minute on one then magically disappeared.
My mini will nonetheless pick up my library, even though it doesn't appear listed in iTunes. (More magic)
My iPhone 4 and iPad 2 will not.
The shared library sometimes appears in either device, but won't load. On the phone it appears to be loading and stops when half way is indicated. On the pad the wheel goes round with no effect and when I click on it I get the message that "Home sharing could not be enabled".
Innumerable fixes have been proposed (don't bother suggesting any more), but none of them work for real.
Its a shame. And shameful.

No issues here with two shared libraries (one on Windows 7 and the other on a Mac), two ATVs, and four iOS devices.