Solved it! The move to new iTunes and new IOS clearly has a few settling issues.
1. Sign-out of iTunes Store
2. Disconnect iPhone and switch off 'sync over wifi'
3. Close iTunes
4. Shutdown and cold re-start computer
5. Start iTunes
6. Dock iPhone and allow sync to take as long as needed (10 mins+ for me)
7. Force new sync and watch steps flow through
8. Sign-in to iTunes Store
9. Turn on iTunes Match
Complete ... fully working iTunes and IOS!
Thanks for the tips!
I had tried a few things on the phone, then saw your posts, and realized I hadn't done a reboot/shutdown of my computer yet since running into this issue with iOS6 and/or iTunes 10.7.
All I had to do was reboot the computer and everything on the phone was recognized properly again, and no error 1156 any more =)
I have been having the same issue. Win7 and iPhone4
The phone had the same sync issues as noted in this thread across both my desktop and laptop machines (both Win7 but different versions - Home and Ultimate)
I fixed it by syncing the phone to cloud (which meant my contacts etc. were copied to my iPad just in case they were lost)
Factory reset the phone
Resync from cloud.
The only loss of data were a couple of apps (which I restored very quickly)
It has been fine ever since.