Microsoft KB Archive/142941

= Clients Using Novell ODI IPX/SPX Protocol Are Disconnected =

Article ID: 142941

Article Last Modified on 5/22/2003

-

APPLIES TO


 * Microsoft SNA Server 2.0, when used with:
 * Microsoft Windows NT 4.0
 * Microsoft SNA Server 2.1, when used with:
 * Microsoft Windows NT 4.0
 * Microsoft SNA Server 3.0, when used with:
 * Microsoft Windows NT 4.0
 * Microsoft SNA Server 4.0, when used with:
 * Microsoft Windows NT 4.0
 * Microsoft SNA Server 3.0 Service Pack 2, when used with:
 * Microsoft Windows NT 4.0
 * Microsoft SNA Server 3.0 Service Pack 3, when used with:
 * Microsoft Windows NT 4.0
 * Microsoft SNA Server 3.0 Service Pack 4, when used with:
 * Microsoft Windows NT 4.0
 * Microsoft SNA Server 4.0, when used with:
 * Microsoft Windows NT 4.0
 * Microsoft SNA Server 4.0 Service Pack 1, when used with:
 * Microsoft Windows NT 4.0
 * Microsoft SNA Server 4.0 Service Pack 2, when used with:
 * Microsoft Windows NT 4.0
 * Microsoft SNA Server 4.0 Service Pack 3, when used with:
 * Microsoft Windows NT 4.0

-



This article was previously published under Q142941



SYMPTOMS
MS-DOS-based and Microsoft Windows-based computers using Novell's IPX/SPX protocol to access an AS/400 through Microsoft SNA Server are disconnected after a brief period of inactivity.

If the client is using a 5250 emulator to communicate with an AS/400, the following errors appear:

Event 38: APPC session deactivated abnormally, qualifier 0005

Event 92: APPC TP detected abend of SNA subsystem

If your client computer is using a 3270 emulator to communicate with a host, you lose your 3270 session and be reset to the initial host signon screen upon reconnecting.

The failure in the API trace shows:

SEND_DATA response, result = COMM_SUBSYSTEM_ABENDED

and Events 38 and 92 are logged in the Application Log (as shown in the Event Viewer).



CAUSE
The IPX/SPX protocol is allowing a timeout to expire, after which the SNA Server client loses it's IPX/SPX session to the SNA Server, causing SNA Server to reset the user's host or AS/400 session.



RESOLUTION
Download the latest version of IPXODI.COM from Novell, dated 8/8/95 or later and replace the original file on the client workstation.

The following information should be added to the NET.CFG file (after the DOS Requestor line):

Protocol IPXODI

SPX Verify Timeout 65000

SPX Abort Timeout 65000

Additional query words: prodsna

Keywords: kbnetwork KB142941

-

[mailto:TECHNET@MICROSOFT.COM Send feedback to Microsoft]

© Microsoft Corporation. All rights reserved.