Password Change Fails Using DNS to Resolve Names

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This problem occurs over TCP/IP because the client computer sending the request to resolve the name of the domain receives a response for the IP address of the PDC (Primary Domain Controller) from the DNS Server, but attempts to form a session with the PDC with the name of the domain as the destination instead of the name of the PDC. This results in a Negative Session Response from the primary domain controller with status Caller Name Not Found.



Under Windows NT 3.51, the three way-handshake and session setup are preceded by a NetBT request from the client computer for registered services on the PDC. Upon receiving the response, the client correctly establishes a session to the PDC with the PDCs machine name as the destination.