I have been working on a rather odd problem with server 2003. the Box is a sunfire x2200 series and the firmware and software is fully patched. What happens is that I can be remoted into the box and suddenly the connection is dropped. When I try pinging the device i get a reponse. When I go to the console of the server it appears that I can't ping anything. I have found if I complete a repair on the network adapter everything then starts working. I have replaced the NIC, made sure all OS patches are there and even did a constant ping to see what happens. When I look I see that the server stops getting replies until I once again right click and select repair.