Unable to Browse Home network!

Help,

I recently have encountered a unique situation at home with my network. I set up a Win2K domain controller and a Win2k Pro client at home. It is a simple network using the Domain Controller as a DHCP server. Up until today everything wasworking fine. When I click on network places/entire network I can see both the Server and workstation. At first, when I tried to access the server it would hang forever. Until a message appears “Server 1 not accessible” or “Semaphore timeout period expired.” I can ping the server w/o a problem. Any help will be great.