This started in March 2012 on sporatic stations, but is getting more common. Users get corrupt profiles and are assigned a temp profile. This is most previlant on computers in the student Lab and within that lab, mostly on XP machines. We re-imaged the computers and if anything it is getting worse. The only GP changes have to due with printer assignments. This lab is on it's own cisco router and vLan. We have a similar problem with computers on wireless, but not as common.
I know it is a FEATURE, but this doesn't fit the "sporatic" trait. This happens several times a day on each computer.
The temp users happen with all login types, including local administrator.
We have a single domain with two ad servers (2008r2) and 2 data servers (2008 Enterprise). We have 450 computers mixed 80% xp and 20% win7.
Thanks for any help.