I have a 2003 Domain Controller and added in a 2008 Domin Controller a few months ago - everything seemed to install successfully.
When the W2003 DC is switched off, none of the clients can authenticate against the 2008 DC. DNS is also insalled on the 2008 DC.
I have transferred all the roles to the 2008 DC sucessfully. When I turn the 2003 DC off, and open Active Directory Users and Computers on the 2008DC it does not show any users. If the 2003 DC is online, the AD Users and Computers opens fine.
I need to format the 2003 Server and reinstall it as a 2008 DC but cannot do this until my issue is resolved.. any suggestions?