I have a Windows 2016 server running as a Tertiary Domain Controller and the issue I'm seeing is that when I run nslookup from the DNS manager it returns 'Default Server: Unknown' with the correct local IP Address. It should return the fqdn of the host server. This dns server was installed as part of Domain Controller install. If I open up a separate cmd prompt and type nslookup it returns 'Default Server: which is fine and the local server IP address, which is also what I expect.
My question is: why can't nslookup in DNS manager find the fqdn of the local server?