Can't Ping Domain from Workstation

After a move to a new office, I can't ping my domain from any workstation, I also can't join any workstation to a domain, and GPOs stopped working as well. But, I can ping any machine by name from the DC, and ping any machine and the DC by name from any workstation. I can ping my domain from the DC. Manually adding the IP of the DC to a workstation makes no difference. Nslookup of my domain just gives me a timeout error. Tracert of my domain gives me an unable to resolve error. Trying to join a domain gives me this, The error was: "DNS name does not exist." (error code 0x0000232B RCODE_NAME_ERROR).

I have no idea what's wrong, all that changed was the physical location of the network, and the static public IP of the network. Has anyone seen anything like this before?

It seems the issue was caused because the DNS interface just disappeared from the properties of the DNS snap-in. Disabling my AV and restarting the issue seems to have fixed the issue, and after re-enabling the AV and restarting again a few times, the issue hasn't come back. I am not sure that this wasn't just a one off glitch, but I'll continue to monitor it and see if it happens again to further track what triggers it.

I've posted a pic below of an example of what I mean.