We have a network with 25 clients, and 1 server with Active Directory on it. We also have several (most) machines running Windows XP. The typical login time for our Windows 2000 machines is approx. 30 seconds from actual login. The typical time for login for our Windows XP machines is closer to around 3 to 5 mins. There should not be this difference when loggin both on to a domain. Something has to be different between the way the server is allowing access to the clients. The server is not running DHCP, WINS, nor IIS. It's acting as a simple server. Has anyone noticed a problem similar to this or know what it could occur or maybe provide a place to start looking?