Automatic WiFi sync to iTunes not working I just upgraded to iOS 5 and am having trouble with the automatic sync to iTunes. Sync works fine if I go into Settings -> General -> iTunes Wi-Fi Sync and press "Sync Now" or trigger the sync from the Device menu in iTunes, but when I plug in my phone overnight sync doesn't happen.

Am I forgetting a setting? Or is there a known-issue that I haven't been able to uncover?

My setup:


iPhone 4 with iOS 5
iTunes 10.5 on MacBook Pro running 10.7.2
Time Capsule for Wi-Fi


EDIT: For clarification, I do have the "Sync with this iPhone over Wi-Fi" checkbox enabled in the Summary screen, and the prevent syncing box in Preferences is not checked.
I had a problem with AUTOMATIC wifi sync not working. Wifi sync worked when initiated from my iphone, but there was no automatic sync.

The fix I found was to:


Ensure "Enable Wifi sync" in checked in the iPhone summary page of iTunes 
Ensure "Open iTunes when this iPhone is connected" is checked in the iPhone summary page of iTunes 
Ensure that "Prevent iPods, iPhones and iPads from syncing automatically" is not checked in the Preferences - Devices settings of iTunes.


I was missing step 2. Once I checked this box, I gained automatic wifi sync every time my iPhone was connected to external power within range of my wifi network.