Same problem here! 😟
Win 7 Untimate 64bit - fully updated.
Nothing changed.
Used wifi sync without problem for years, including a few days or so ago.
Noticed today wifi sync wouldn't work. Prior to OS6 update.
Rebooted everything !!
Updated to OS6 - same problem.
Works find with cable - nothing via wireless. Go into ipod settings>General>itunes wifi sync>sync option greyed out.
itunes on PC doesn't pick up either of my i devices (and ipad)
wifi works on devices tho - can happilly use internet over wifi etc...
I think its a itunes updated that has caused the problem as this problem existed for me PRIOR to OS6 update when all that could have happened was a itunes update !!??
Bruddy annoying as my wife is disabled and having to keep getting up and manually connecting to PC for her is a REAL PAIN in both sences of the word !!!
Sort it ASAP please !!!