I think I have a problem with my GPO sync.
After a day of testing with multiple user accounts, computers and new GPO's, I finally got a problem pinpointed but now I don't know how to troubleshoot or what to do next.

The problem is as follows:
We've got multiple containers with a GPO: PCs, Students and Colleagues.
The only problem there is, is that some user accounts within the Students container aren't getting GPO's.
If I go to see what the is generating I don't see the container Students passing by only the PCs and Colleagues. With the last two containers we aren't experiencing any problems.

Also if you login on a workstation (this is what it al started) and a student user account that is not working. You get the error that the user cannot be found with de command gpudate.

I've patched the services to the latest versions available today.
Could anyone point me in the right direction?

Paul Reemeijer