I have an urgent issue with a client of mine. After rebooting their Windows Server 2003 SBS server, no clients can ping or access any shares/print queues on the server. I can successfully ping the clients from the server but cannot ping the server from any client. The environment consists of one and only one server. There's no firewalll/security software installed that I can see is blocing access. Everything was fine until the reboot. Please help.