This DNS server is configured to use information obtained from Active Directory for this zone and is unable to load the zone without it.
Logging into the local computer they can now access the server using mapped drives.
I cannot remote desktop into the server anymore, I get the same error as above.
Until recently most everything seemed to be working okay most of the time.
Now, none of the workstations can log onto the domain.
However I was instructed to remove the second NIC from the server so I currently have the secondary DNS in the router set back to the IP of the router.