I have Windows 7 Enterprise Edition which is joined to a Server 2003 domain. The problem is that every day or so DNS seems to be messed up on the 7 machine. I cannot ping it from the server. if I ping it, it gives me some 66.x.x.x address which relates to nothing of my network. Router is 192.168.0.1, server is .2 and 7 machine is .4 I can ping the server fine, but cannot ping the 7 machine by host name? After rebuilding the tcp/ip stack, and rebooting it will work fine. But this is a little old, and never holds. Any suggestions?