At this point, you have established that the Microsoft Exchange Server computer is responding to the network. The next step is to verify the host name resolution.
At the command prompt, ping the Microsoft Exchange Server by computer name.
Ping Succeeds If pinging the Microsoft Exchange Server name works in a timely manner, but the client starts up slowly, the RPC binding order might have to be modified. For more information, see Knowledge Base article Q136516: "Improving Windows Client Startup Times."
Ping Fails If the ping fails, run IPCONFIG /all or WINIPCFG on Windows 95, and check for an address in the DNS field or DNS Servers entry box respectively. The DNS can be set for all TCP clients through the dynamic host configuration protocol (DCHP) or by using the TCP configuration in Control Panel for the individual computers.