I have migrated a WIndows Server 2008 DC to Hyper-V and everything works except DNS. Initial boot of VM used DHCP and when I change the IP address back to what it was before migration I lose internet connectivity. DNS under the DHCP IP address boot only uses IPv6 not the IPv4 DHCP address (properties in DNS Manager). How do I "fix" DNS to use the static IP address the server previously had? FYI, This is a secondary DC / DNS machine and could be demoted if that is the solution.