Hi
I have installed the first Server 2008 R2 domain controller in to my forest. All other DCs are running Server 2003, and are a mix of R2 and non-R2.
Everything regards the dcpromo etc went OK, but I seem to be having an issue with the DHCP server role that I installed to the Server 2008 R2 DC. There are errors being logged in the event log, referring to "Access denied". The other thing that it affected, is trying to do a backup from within the DHCP console on the 2008 R2 DC. It fails, same reason.
Testing, I added the "Network Service" account to the c:\windows\system32\dhcp folder and gave it read/modify rights. I then tested the backup, and it worked. The DHCP server service runs as Network Service, this must be standard as I've not changed it.
After I confirmed the backup had worked, I ran "gpudpate /force". After doing this, the permission had been removed and the backup no longer functioned.
Please can somebody confirm whether there is a step that I may have missed, or if it is a known issue. I notice a group in AD called DHCP Administrators, but even this group doesn't have permission on the folder. Are my domain policies not upgraded for Server 2008 R2 DCs?
Many Thanks
Mark.