I have Wifi sync turned on on my iPhone and iPad but when I open iTunes it's a crapshoot whether they will actually appear in the devices section to sync/configure/transferfiles/etc. Sometimes they both show up, sometimes one, and sometimes neither (the majority of the time neither). This is really frustrating. Is there some way to "kick" either the iOS device or iTunes into finding each other? Sometimes rebooting a few times fixes it but this takes forever for something that's supposed to save time. After all these years of wifi sync I'm still having to use the cable probably 80% of the time. There is no problem with my wifi, every other network service seems to work great, and I'm using an Airport Extreme router.