KnowledgeBase Archive

An Archive of Early Microsoft KnowledgeBase Articles

View on GitHub

Q174202: Configuring SPX Watchdog Timers in Windows 95

Article: Q174202
Product(s): Microsoft Windows 95.x Retail Product
Version(s): 2.0
Operating System(s): 
Keyword(s): kbnetwork osr1 osr2 win95kbfixlist
Last Modified: 25-MAR-2002

-------------------------------------------------------------------------------
The information in this article applies to:

- Microsoft Windows 95 
- Microsoft Windows 95 OEM Service Release, version 2.0 
-------------------------------------------------------------------------------

SYMPTOMS
========

Programs using the IPX/SPX-compatible protocol (NWLINK) to communicate over a
wide area network (WAN) or other slow link may not connect or may experience
dropped connections. Analysis of network traffic may reveal that an SPX Watchdog
timer has expired on the remote node. This symptom can occur particularly if the
watchdog parameters on the server are configured to non-default values.

CAUSE
=====

SPX Watchdog timers are not configurable for the IPX/SPX-compatible protocol in
Windows 95 and Windows 95 OEM Service Release 2 (OSR2).

RESOLUTION
==========

You may be able to work around this issue by reconfiguring the SPX watchdog
timer parameters on the server to their default values.


STATUS
======

This problem no longer occurs in Windows 98. To resolve this problem, install
the current version of Windows. For information about the current version of
Windows, visit http://www.microsoft.com/windows.

MORE INFORMATION
================

According to Novell documentation (TID #2910905), the following timers are among
the Watchdog timers that are configurable for Novell's IPX/SPX protocol:

SPX Verify Timeout
------------------

This parameter controls how long the watchdog waits after it has sent a packet
before it sends a system packet to keep the connection alive.

SPX Listen Timeout
------------------

This parameter controls how long the watchdog waits after it has received a
packet before it sends a system packet requesting an acknowledgement so it will
know the connection still exists.

Send Timeout
------------

This parameter controls how long IPX waits for an acknowledgement of a sent
packet.

For additional information about Novell's implementation of SPX timers, please
consult Novell or your Novell NetWare documentation.


Additional query words:

======================================================================
Keywords          : kbnetwork osr1 osr2 win95 kbfixlist
Technology        : kbWin95search kbOPKSearch kbZNotKeyword3
Version           : :2.0
Issue type        : kbprb

=============================================================================

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY.