Well anyway i set up my Server 2008 and configured everything correctly. I used a test network and managed to connect my test pc do my domain. It has internet and is fully functional. Well with that success i moved to a larger scale, added more user and computers in my Active Directory Domain Users and Computers. The problem is i cannot connect any more computers to my domain. I get an error saying: "An attempt to resolve the DNS name of a DC in the domain being joined has failed. Please verify this client is configured to reach a DNS server that can resolve DNS names in the target domain." All my computers can connect to my network and receive internet access, but will not connect even when im using the same method that worked on my test computer. Another thing i noticed is that when i try to connect my test computer to my domain a second time "just to see if its a setting on the other comps" it gives me the same message, yet im already logged into my domain. My question is how the heck did i manage to connect my test computer, but suddenly be locked out from connecting anything again, including the computer that already has been configured? is there a setting in Server 2008 that is preventing more than one client to be configured to my domain?