I am having network access problems and was hoping someone could help me out.
Our network consists of an sbs 2003 (non-premium) acting as DC for around 25 clients (all XP except two Windows 7) and another server acting as a file server. The DC also runs DNS and DHCP. A cable modem supplies Internet access through a Bountiful BWRG-1000 router/gateway.
We had a power outage and after restarting the DC, neither it nor the clients could access the Internet or any of the shared drives on the file server. None of the clients or the DC can ping the router (the clients and DC give a request timed out error; the other server says "Destination host unreachable."). None of the clients can ping the DC or other clients, either.
The servers and clients can ping their own IP addresses as well as 127.0.0.1.
The servers and clients access the router through unmanaged switches. I've changed cat5 cables, changed ports on the switches, and power-cycled the switches and router with no effect. I've also rebooted the DC several times with no effect.
One wrinkle is that I can connect the DC to one of the LAN ports on the router and get to the Internet (which is how I'm typing this). I don't think the switches are bad (all the activity lights look normal), but is there an easy way to tell just in case?
Can anyone start me in the right direction? I've browsed this site and Google for a couple of hours with no success. Thanks!