I recently upgraded my network domain from NT to 2003. After uprading I have two laptops that cannot reach the new domain. They are now logging in using a cached credentials ( When I run the set command they show the old domain controller). When I remove them from the domain and try to rejoin, I get "The network location cannot be reached". I know that my domain is setup properly, becuase I have added 10 NEW pcs since switching over. Something on these two laptops are preventing them from joining the domain. I have reset the TCP/IP Stack, reset winsock. Installed another NIC after disabling the one on the motherboard. I have verified that all the services that need to running (Netbois Helper, Computer Browser) are. I tried adding a entry into the LMHOST file. I have disabled the firewall and uninstall all antivirus software. I did not see any message in Event viewer.