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CrossRoadCS

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No network access or internet after SP2 update.

About 2-3 weeks ago, we lost all network communication with our SBS 2003 server.  The nics claimed that the cables were diconnected when the switched showed a good connection and the cables tested ok as well.  I removed those nics and installed brand new ones that obtain an ip address and do not complain about the cables being disconnected but we still have no traffic.  I can ping any website but the ping takes an abnormal amount of time to complete and even a few out of the  requests fail at times.  I cannot reach or even see the server on the network from another computer and vise-versa.

I decided to try a windows repair despite some warnings and at first the internet and network began to function normally.  However, I couldn't access active directory or any other MMC console because the repair downgraded the server to NO service pack, also, even though I could browse the network and access shares on the server, it was buggy at times.  Sometimes you could connect, and sometimes not. I upgraded to SP2 to solve the MMC problems and the network communication problem came back.

What do you suggest other then reloading.  It is a domain server and I rather not go through all the setup again!
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CptnTrips

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You have alot going on there.
From what you mention, the new Nic's are set to DHCP?  If so the server needs a static address with the gateway of the router.
also your workstations now days NEED the server's static IP to be the first number in the DNS.
ie: if your server is 192.168.0.200
when you go to your workstations and from a cmd prompt type ipconfig /all the dns should show
192.168.0.200 as the first entry.
also make sure you have DHCP on the server turned off if your going to use a router for the DHCP. This can be done by start -> control panel -> administrative tools -> services
disable the DHCP server and set it to manual.

next you mention Nic's and cables, (normally) you should only be running one nic in the server.

I'm not sure why sp2 would cause such a problem unless it was drivers.
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CrossRoadCS

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Thanks for all the help guys!  I downloaded the drivers straight from realtek and everything started working immediately.  I used the drivers that came with the nics which turns out are NOT Win2003 SP2 compatible.  Stupid me for not thinking of that earlier.
Thanks for all the help guys! I downloaded the drivers straight from realtek and everything started working immediately. I used the drivers that came with the nics which turns out are NOT Win2003 SP2 compatible. Stupid me for not thinking of that earlier.