I have a 2012R2 DC and 2003 DC. Single domain. 15 workstation LAN. DNS looks identical on the two DCs.
1) I have a few local machines getting a DHCP lease, that don't show up in DNS (forward or reverse, IP isnt listed under another host).
2) I have the same issue with some, but not all, VPN users. I need to statically IP these nodes in DNS to see Maps.