Microsoft KB Archive/139506

= Connections to Share-Level Server May Fail =

Article ID: 139506

Article Last Modified on 10/31/2006

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APPLIES TO


 * Microsoft Windows NT Workstation 3.51
 * Microsoft Windows NT Workstation 4.0 Developer Edition
 * Microsoft Windows NT Server 3.51
 * Microsoft Windows NT Server 4.0 Standard Edition

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This article was previously published under Q139506



SYMPTOMS
It is possible for multiple logon sessions to be in progress simultaneously from a single workstation to a single server. For example, the interactive logon user may initiate an interactive logon session and a service may initiate another session. These logon sessions are multiplexed over a single virtual circuit (VC.)

When such connections are established to a share-level server such as Windows 95 or LAN Manager running share-level security, the session may be terminated unexpectedly when one of the users log off.

Applications may receive one of the following error messages:

An unexpected network error occurred

System error 59 has occurred



CAUSE
The Windows NT redirector incorrectly sends a logoff&X Server Message Block (SMB) to the share-level server when other sessions exist.



STATUS
Microsoft has confirmed this to be a problem in Windows NT version 4.0. This problem was corrected in the latest Microsoft Windows NT 4.0 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

Microsoft has confirmed this to be a problem in Windows NT version 3.51 Service Pack 5. We are researching this problem and will post additional information here in the Microsoft Knowledge Base as it becomes available.

Additional query words: prodnt 3.51 4.00

Keywords: kbbug kbnetwork KB139506

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