I've added a 2008 domain controller to the network to replace the current 2003 domain controller. ADPREP ran fine and I ran DCPROMO on the 2008 server but after the first reboot the server lost network connectivity and it seems the reason is because now instead of using the domain network profile it's using the Public one because it thinks it's on an "unidentified network". I cannot connect to or out of the 2008 server anymore, not even pings and the Network and Sharing Center says I have Local Access only.
Also, the domain policy enabled the firewall and turned off the standard profile firewall in the registry as part my troubleshooting. netsh shows the opmode as enabled and it won't let me disable. (if this is a firewall issue)
When the server was a member server everything was fine.