When setting up a Active Directory domain, dcpromo.exe can include the required DNS installation, but the Wizard may warn you that you have one NIC adapter that is NOT set to static.

This is generally caused because both IP4 and IP6 are installed by Default and both need to be set

I found a quick and dirty on-line/web based utility that can help you convert the IP4 to IP6 address:

An alternative approach is to just Disable IP6 for the NIC, since to take advantage of IP6, the rest of your networking infrastructure also has to support IP6 (Gateways, Routers and Switches).

Hope this helps!

- Andrew