Either your user account is not registered with the domain listed, your password is expired, or you mistyped the information. If you do not specify a domain, the remote access server attempts to verify your user name and password on the domain of which it is a member.
Carefully retype your user name, password, and domain. If you are unsure of this information, contact your system administrator.
I guess 2K system mixed network with dial-up-to internet. I don't know which domain it want me to type.