I have 2 NICs in my UNRAID box. IPs are 10.1.17.101 and 10.1.1.20
The local network uses our Windows Domain Controllers for DNS.
I put in a manual A Name record for the SERVERNAME to point to 10.1.17.101 on the Windows DNS server, but after a few days it always changes to 10.1.1.20
Maybe this is more of a Windows Networking question, but I'm not finding any useful information when searching more generally.