I just promoted a server 2012 box to DC. I had a static UP assigned using these:
192.168.1.29
255.255.255.0
192.168.1.1
DNS after promotion:
127.0.0.1
After I rebooted though there is no ethernet connection. However, I can go to Google or Hotmail. Actually, after going to those places on the net, the yellow ! on the ethernet icon disappears.
Something to worry about?