iPhone 4 has trouble syncing over WiFi
I seem to have a lot of trouble getting my iPhone 4 to sync over WiFi. I try initiating it from within iTunes but it will sit at "waiting for sync to start" for a long time. Sometimes, after several minutes, it will start but sometimes it never starts.
I also have an iPad 2 and I never have trouble syncing it over WiFi. So I don't think it's my computer or my wireless connection.
I can sync the iPhone 4 fine with the cable.
I'm running the latest OSs on every device (iOS 5.0.1 on my iPhone 4 and iPad 2, and OS X 10.7.2 on my 13" MacBook Pro).
My router is a Airport Extreme.
13" MacBook Pro, 2.4 Ghz, 4 GB RAM, 500 GB HD, Mac OS X (10.6.5)