Cannot Log On Using IPX After Installing SP3 on Windows NT 4.0

• Microsoft Windows NT Server version 4.0
• Microsoft Windows for Workgroups version 3.11
• Microsoft Windows 95
• Microsoft Network Client version 3.0 for MS-DOS

SUMMARY

After you install Service Pack 3 for Windows NT 4.0 Server, clients who try to log on using the IPX protocol may experience problems.

Microsoft Network Clients version 3.0 for MS-DOS may display the following error:

   Error 5: Access has been denied.

   The Domain password supplied is incorrect, or access to your logon
   server has been denied.

The Microsoft network clients 3.0 for MS-DOS may also exhibit problems Establishing a session to a member server in the logon domain. In this case, you may receive the following error:

   Error 58: The network has responded incorrectly

RESOLUTION

WARNING: Using Registry Editor incorrectly can cause serious, system-wide problems that may require you to reinstall Windows NT to correct them. Microsoft cannot guarantee that any problems resulting from the use of Registry Editor can be solved. Use this tool at your own risk.

1. Use the Regedt32.exe tool, and navigate to the following location:

   HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\LanManServer\ Parameters

2. Add the following value:

   Value Name: MinClientBufferSize Data Type: REG_DWORD Data: 500 Radix: Decimal

3. The computer will need to be re-booted to have this change take

       effect.