A long one for you:
We are trying to get a new 2003 Domain Controller to takeover the role of the existing old 2003 Domain Controller, we want to remove the old 2003 server completely.
We have DCPROMO'd the new server, with AD-integrated DNS setup.
We have moved all FSDM roles to the new server. Enabled Global Catalog.
Now we shutdown the old Domain Controller. Note we have not demoted it yet, is this mandatory at this stage? We thought it'd be a good idea to leave it as is, just shut it down in case any problems arise, then once we are happy we can DCPROMO and demote the old server. Is this ok?
Now, almost everything appears to be working fine, except when a client machine initiates a Terminal Session using RemoteDesktopConnection to our TS box. It will take approximately 30-60 seconds to bring up the login screen, it sits there saying 'connecting to <ip address here>', then finally pops up.
When I turn the old DC back on, and try initiate the TS connection again from the client, it is instant. I turn the old DC off again, the connection takes atleast 30-60seconds again.
I have completely disabled the DNS service on the old DC to see if it is a DNS problem, but even when this is disabled yet the old DC is powered on, the client still has instant connection to the TS box.
Note: it is only a problem RDP'n this particular TS box, the connections are instant if I test to any other server.
I have checked the DNS settings on this particular TS box and they are correctly pointing to the new DC, not the old one.
The TS box is running 2003 server. There are no problems pinging from client to TS, nor are there problems connecting to shares on the TS. It only appears to be the initial RDP connection from ANY client to the TS box. I have tried removing the TS server from the domain, then adding it again. Still no luck.
Thanks for your help.