Windows 2000 and later clients register their host name with the Dynamic Domain Name System. When various problems cause the registration to become missing, you can refesh the resistration of a client computer, regardless of wether it uses a static or dynamically assigned IP address, without restart the client workstation or client server:
1. Open a CMD prompt on the client computer.
2. Type ipconfig /registerdns and press Enter.
NOTE: You can use PsExec \\RemoteComputerName -s ipconfig /registerdns to do this remotely.