I have a Windows 2000 server domain using Active Directory (Server 1) and a Windows 2000 server as a workgroup without Active Directory (Server 2). When trying to change in Server 2 to join the domain, I get an error message that tells me the credentials conflict with an existing set of credentials and the computer is not allowed to join. Do you know what the error is?
It sounds like when you are trying to join the domain your system has already connected to the Domain Controller (Server 1) using a different set of credentials. For example, some network share would be connected to the Server 1 when you logged on to Server 2. Since only one connect is allowed to each server, you get a conflict. You will need to:
1)Disconnect any connections to the Server 1 prior to trying to join the domain (NET USE at the command prompt to look for connections)
2)Use a different account, like the local administrator that does not have any such connections.