Currently Being ModeratedNov 17, 2012 9:19 AM (in response to noahs)
Same problem, wiped and restored phone and it fixed it temporarily (just like restarting or toggling airplane mode would). Only seems to affect my corporate Exchange account, as I have my Gmail account added as an Exchange account to take advantage of Push and Contact syncing and it continues to work fine. I tested with another iPhone 5 in our organization and it has been working fine since the user got it.
However, I don't see APSD in Diagnostic & Usage Data, I'm not sure how long that log is kept but it has stopped working twice since I performed a restore on the phone, last night and again this morning (only a few minutes after I restarted).
Version 6.0.1 (10A525)
Modem Firmware: 1.01.00
Am going to try wiping and setting it up as a new phone.
Currently Being ModeratedNov 17, 2012 12:37 PM (in response to TechIntrovert)
Unfortunately, setting it up as a new phone does not seem to have worked for me. Gmail push is still working, corporate Exchange is not. It's been less than 3 hours since I re-set it up as a new phone.
We're using Exchange 2007 in a 2k3 domain with a separate CAS. Doesn't seem to make a difference if I'm on Verizon LTE, corporate wireless (HP and Aruba WAPs), home wireless or VPN'd in.
(Edit: There's a 41 page thread about this issue dating back to September and there doesn't appear to be a permanent fix yet: https://discussions.apple.com/thread/4345374?start=600&tstart=0)