One of my clients purchased a new server. He wishes to stay in a single server environment (5 employees). I installed the new server and promoted it without any problems. A couple of days later I am trying to demote the other and I get the following message.
"The box indicating that this domain controller is the last controller for the domain tapanganpediatrics.com is unchecked. However, no other Active Directory domain controllers for that domain can be contacted.
Do you with to proceed anyway?
If you click Yes, any Active Directory changes that have been made on this domain controller will be lost.
YES NO "
I have verified connectivity between the two. What else can I check?