I have a single domain that had one Windows 2003 domain controller. I have introduced a Windows 2008 R2 server and followed the Microsoft white paper to the letter to prepare the existing AD, transfer all the FSMO roles etc. Everything completed without a problem. I have run DCdiag and everything, again is fine.
But before I demoted the original W2K3 server I left it on the network for a week, and then checked all the workstations to see which server they were using as their login server, which unfortunately the old server and not the new. I changed the DHCP scope so the new server is the DNS server, the new server has all 5 FSMO roles, the new server is a Global Catalouge server etc. But all the workstations persist in using the old server as their logon server.
Is this normal? Can I safely demote the old server without causing mayhem or does the above describe dilemma really indicate a problem?