I have a fairly annoying and strange issue with my domain controller. So I have a hypervisor with two VMS running on it. One old and one new. So the old one is going to turned off eventually. The issue is that no active directory plugin will open. The old VM was working fine, then I spun up the new one promoted it to a DC with no issues. I checked everything had moved across i.e. DNS, AD usernames etc... and it was fine. I also changed the operations master to the new server.
However I moved my data from the old to the new a few days later, and went to create a new GPO to find that group policy manager would not load. I then tried to open AD users and computers, but I was met with the following error "naming information could not be conntacted". The screen then loads, but when I right click and click change domain controller it finds none.
I have gone through all of the DNS settings but cannot find anything wrong. If I ping my domain it gets the IP of the new DC. I have even tried changing it so it only listens on the local IP of the DNS/DC server.
Neither server is showing the sysvol or netlogon share.
In network and sharing center its showing public network.
The Default Gateway is correct
the old server is 2012 and the new is 2016 essentials.
Any Ideas would be amazing.