Macs losing WGM settings when network cable is unplugged
First off, I'm a long time reader of edugeek(you all are awesome and have helped me out tremendously), but recently muscled up and joined. I'm still a novice in the Mac world and I am looking for some assistance.
Secondly (my issue), we currently have a lab of iMacs, most of them running 10.5 and a small portion running 10.6. We have all of the settings managed through Workgroup Manager through our district Mac server. The iMacs running 10.5 have no issues, they abide by all of the settings pushed to them, i.e. proxies, application restrictions, etc. However, the newer iMacs running 10.6 take the same settings upon login, but if the network cable is unplugged for about 10 seconds and re-plugged in, the locked down accounts now have full access to the computer. It's as if it loses its settings when the cable is unplugged. The students can then visit whatever sites they want, they have access to applications that were previously restricted, and they have access to System Preferences.
The same does not happen on the 10.5 machines. If their network cables are unplugged and plugged back in, they retain all of their managed settings.
I'm at a loss for what could be done to correct this on the newer machines, but it is a big security risk at this point. I appreciate any assistance you all could provide. :)