Authentication error in Windows NT clients

03 Troubleshooting

Administrator Client, Client, Designer, Server
Authentication error in Windows NT clients

Due to a problem introduced by Microsoft in Windows NT Service Pack 4, a Windows NT client communicating over NetBIOS may return the following error:

Unknown authentication message type was received

This message usually appears when you try to connect to a non-Windows NT Domino server. To avoid this message you have to disable "DNS for Windows Resolution" in the Microsoft TCP/IP Properties for the Notes client.