Extra Security Dialog Displayed with Windows 3.x Client

• Microsoft SNA Server version 3.0

SYMPTOMS

When you configure the SNA Server 3.0 client for Windows 3.x to use named pipes as the transport, the Enter Domain Credentials dialog box appears after the client is started.

NOTE: This will only occur on a Windows for Workgroups (WFW) 3.x system if password caching is disabled. Windows 3.x does not support password caching.

CAUSE

Changes were made to the SNA Server 3.0 Windows 3.x client to support the data encryption feature that was added in SNA Server 3.0. The Windows 3.x client was using the NTLM logon process for validation by the SNA Server; this caused the extra security Enter Domain Credentials dialog box to appear.

RESOLUTION

There are two resolutions to the problem that will prevent the Enter Domain Credentials dialog from being displayed:

   Enable password caching if the Windows 3.x SNA Server client is
   installed on a Windows for Workgroups 3.x system.

   -or-

   Obtain the updated SNA Server 3.0 client for Windows 3.x. If password
   caching is not an option and you will be using named pipes and data
   encryption, the following entry must be in the [WNAP] section of the
   Win.ini file:

      LastLogonMethod=NTLM

STATUS

Microsoft has confirmed this to be a problem in SNA Server version 3.0. This problem was corrected in the latest Microsoft SNA Server 3.0 U.S. Service Pack. For information on obtaining the service pack, query on the following word in the Microsoft Knowledge Base (without the spaces):

   S E R V P A C K