This is a working Windows Server 2008 that I should install Active Directory on it.

I found http://www.howtogeek.com/99323/ and followed the steps. After Additional Domain Controller Options, I'm asked the question "This computer has dynamically assigned IP addresses".

As I see, the message states that Dynamic IP addressing has been used for the server, while this is wrong.

When I come to Network And Sharing Center, and click on Local Area Connections -> Properties -> Internet Protocol Version 4 (TCP/IPv4) -> Properties, I see that the main IP address (as well as DNS Server) and also all other IP addresses are assigned statically. So it should be OK.

I cannot believe any server using dynamic IP(s)!

Note: No IPv6 has been set for the server.

Please tell me why the error is given and which of the options available, should I choose?

Note that it's a production server and is working with many users in WORKGROUP. No change should be affected nor to the IPs, neither to users connecting to the server.