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.