Windows Server 2008 R2 Domain Controller - NLA set to public Firewall policies public

Hi

I have a Windows Server 2008 R2 Standard with SP1 DC that when the DC is restarted or powered on, the NLA is set to unidentified network - public network and then public firewall policy is active. If I disable and then enable the network adapter, the NLA refreshes and changes to Domain and then the firewall policies are domain based. All is good, until the DC is restarted.