RPC server unavailable when adding local administrators to domain laptop

I have a Windows XP computer on a Windows 2003 domain. This is a fresh install of vanilla XPP with Office 2007 and is fully patched. The computer joins the domain flawlessly over a VPN and the DNS on the VPN is set to the domain DNS server. Both the DNS server and the DC are hard coded in the hosts file. The problem is I get "The RPC server is unavailable" when I attempt to add any domain user to the local administrators group. Any thoughts?
lighthousekeeperAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

BrufinCommented:
Are you logged on as a local or domain user? I must admit it does sound DNS type issue, can you resolve names OK from the command line?
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Windows Server 2003

From novice to tech pro — start learning today.