CSNW Connection Leak When Running 16-bit Applications

• Microsoft Windows NT Workstation version 4.0
• Microsoft Windows NT Server version 4.0
• Microsoft Windows NT Server version 4.0, Terminal Server Edition

SYMPTOMS

When you use Client Services for NetWare (CSNW) or Gateway Services for NetWare (GSNW) to connect to a NetWare server and you are running a logon script or manually invoking a 16-bit application on a NetWare server, you may receive the following error when you attempt to log back on:

NetWare Authentication Failure

You cannot be authenticated on <NetWare Tree and Context> due to the
following reason: A connection to the server could not be made because
the limit on the number of concurrent connections for this account has
been reached.

Do you want to select another preferred server or context?

CAUSE

The NetWare server has Limit Concurrent Connections for your user account set to 1. When the client logs off after running the 16-bit application, the connection on the NetWare server is not closed. This results in an unlicensed connection on the NetWare server. The connections are cleaned up if the user shuts down and restarts the server before logging back on.

NOTE: You can determine if a connection is unlicensed by going to the NetWare server, loading monitor, and then selecting the active connection list. Unlicensed connections will have an asterisk (*) in front of the user name.

RESOLUTION

You can work around this problem by performing any of the following:

• Set the concurrent connections for your user account to a higher value on the NetWare server.
  
  -or-



• Shut down and restart the workstation after each use.

Q152734 How to Obtain the Latest Windows NT 4.0 Service Pack

STATUS

Microsoft has confirmed this to be a problem in Windows NT 4.0 and Windows NT Server 4.0, Terminal Server Edition. This problem was first corrected in Windows NT 4.0 Service Pack 4.0 and Windows NT Server 4.0, Terminal Server Edition Service Pack 4.

MORE INFORMATION

For additional information on ensuring that the connection leak is fixed, please see the following article in the Microsoft Knowledge Base:

ARTICLE-ID: Q174676
TITLE : "NetWare Authentication Failure" Logging On to NetWare Server

Keywords : kbnetwork NT4SP4Fix kbbug4.00 NTInterop ntnetserv ntprotocol kbfix4.00.sp4 kbinfo NTSrvWkst
Version : WinNT:4.0
Platform : winnt
Issue type : kbbug