We have a computer on our network that doesn't seem to be able to use roaming profiles. A few things we noticed:
1. When he logs on we are getting errors in the servers event viewer regarding Group Policies...
'Windows cannot query for the list of Group Policy objects. Check the event log for possible messages previously logged by the policy engine that describes the reason for this."
2. It takes a while for the PC to take an IP from the DHCP server.
3. When we restart the computer and it logs into Windows it says that it cannot locate the folder(network path) for the roaming profile. If you log out and log in with a different user, it finds that profile and loads it. However, if you log out and back in with that same user we get the error and it loads the local copy of profile.
4. If we set the IP to Static the profile works immediately.