I am running Server 2003, and seem to have this problem where the server starts kicking out users after a while, especially when they log off, they cant log back in, or the printers on the metwork stop connecting and they can't print to it. When I check the server, I notice that the server has 2 IP addresses, even though it has a static IP, it seems to pick up another IP address as well, but when you go into the IPV set up, it's not there, but if you run the IP scan utility tool, it picks it up. To correct this, I either can log off the server, then log back in, and the IP disappears, or sometimes this doesn't work, and I need to restart the server, but this happens like every 2 days or so. Can anyone out there help?
Why don't you run ipconfig/all on the server and see what ip addresses(es) it's really using. Maybe you have a stale DNS or ARP entry somewhere that is causing Netlab to report another ip address for the server.