This is the disease that is Apple. They spend so much time trying to make this awful product look pretty that the underlying technology and functionality suffers.
Hey Apple, MORONS, are you listening? YOU BROKE THE ABILITY TO DO WIFI SYNCING WITH YOUR LATEST DISEASED UPDATE!!!.
If I plug the ipod in to the computer, turn OFF wifi sync then turn it back ON, then unplug the ipod, everything works and itunes sees the ipod via wifi. But if I close itunes and reopen it, the ipod is GONE and will not come back over wifi unless I go through those steps again.
Howzabout fix, MORONS? Or maybe it's just time to switch 100% to Google Music. Amazingly that works 100% of the time.