I just installed two new Windows Server 2012 domain controllers in our environment. They are clean installs as Hyper-V guest OSes. They offer DHCP, DNS and are domain controllers.
I plan to decommission two existing Windows 2008 R2 DCs which are physical machines. There are also two Windows Server 2012 DCs located across the VPN in another country. There are no DNS errors in the event logs of older servers.
On the new servers, I am getting repetitive 4015 event IDs. Happens a few times per hour. I am concerned that if I decommission the physical servers, I might have trouble.
Here is the error exactly: The DNS server has encountered a critical error from the Active Directory. Check that the Active Directory is functioning properly. The extended error debug information (which may be empty) is "". The event data contains the error.
I am pretty confident in my ability to add new DCs with DNS to a network, but I'm unsure as to what's gone wrong here.
Any help would be greatly appreciated.