Windows 2000 professional loging problem

[easg]

I have a problem connecting a Windows 2000 professional workstation to a Windows 2000 Domain, when I start up the PC It displays this error message " A duplicate name exist on the network" and It doesn´t connect to the server, but I can browse other machines in the network. all login name for this domain are different, this is the only win 2000 pro pc all the others are Win 98se.

[mikeL]

are you trying to log on to the domain as administrator, on more than one machine ?

[easg]

I created a user account in the server and I am using this account to try to log in to the domain from the windows 2000 pro pc.

[mairving]

Usually a duplicate name error means that:
-You have a computer with the same name on the Network.
-You used to have a computer with the same name on the Network that is still recognized either by DNS, Netbios or WINS.
-You are logging in using the same name on two machines.
-You have 2 NIC's connected to the same Network.
-Or a combination of the above.

[easg]

This PC was part of a Win 98 network without domain controler, I fact all PCs were before the domain controller was installed, I think this is the DNS matter, How can I fix this?