Windows 2000 domain went down - now some of the servers cannot see the domain controller

Today, when I was out of the office  a storm blew through the area. I received a call that everything seemed to go into limbo. I walked a tech through restarting the network and some applications started fine. Email was still an issue. When I got back to work - everything seemed to be in limbo again. I restarted the network and then all of the servers starting with the domain controller. I have 2 racks of Dell servers and it seems that the domain controller cannot communicate with the servers in the one rack. I have a domain controller, an application server, a Citrix server, a mail server, etc. The domain controller can see the servers in Rack 1 but not the servers in Rack 2. The domain controller can see the WAN and switch in Rack 2. I am at a loss as the what the problem is and am not technical enough to rationalize the issue.
kpollardAsked:
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SembeeConnect With a Mentor Commented:
Do raw basics first - can they ping each other? If not then it is a physical problem - either NIC, cables or Switch.
If they can ping, then start to buld up other things - DNS settings, events in the error logs etc.

My instinct says that something has physically gone wrong and you need to find it.

Simon.
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