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Q247819: WLBS May Discard Some TCP/UDP Fragments

Article: Q247819
Product(s): Microsoft Windows NT
Version(s): 4.0
Operating System(s): 
Keyword(s): kbnetwork kbWinNT400PreSP7Fixkbfixlist
Last Modified: 08-MAY-2002

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The information in this article applies to:

- Microsoft Windows NT Server, Enterprise Edition version 4.0 
- Microsoft Windows NT Server version 4.0 
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SYMPTOMS
========

When your Windows NT 4.0-based computer is using Transmission Control Protocol
(TCP) or User Datagram Protocol (UDP) packets, you may experience unpredictable
network connectivity problems. Intermittent and undetectable loss of traffic may
occur when the datagram size exceeds a network's Maximum Transmission Unit (MTU)
size.

RESOLUTION
==========

A supported fix is now available from Microsoft, but it is only intended to
correct the problem described in this article and should be applied only to
systems experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the
fix. For a complete list of Microsoft Product Support Services phone numbers and
information on support costs, please go to the following address on the World
Wide Web:

  http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS

NOTE: In special cases, charges that are normally incurred for support calls may
be canceled, if a Microsoft Support Professional determines that a specific
update will resolve your problem. Normal support costs will apply to additional
support questions and issues that do not qualify for the specific update in
question.

The English version of this fix should have the following file attributes or
later:

  Date         Time     Size      File name   Platform
  -------------------------------------------------------------
  10/12/1999   08:44p    36,112   Wlbs.exe    x86    
  10/29/1999   02:06p    60,208   Wlbs.sys    x86
  10/12/1999   08:43p    51,472   Wlbs.exe    Alpha
  10/29/1999   02:05p   101,104   Wlbs.sys    Alpha



STATUS
======

Microsoft has confirmed this to be a problem in Windows NT 4.0.

Additional query words:

======================================================================
Keywords          : kbnetwork kbWinNT400PreSP7Fix kbfixlist
Technology        : kbWinNTsearch kbWinNT400search kbWinNTSsearch kbWinNTSEntSearch kbWinNTSEnt400 kbWinNTS400search kbWinNTS400
Version           : :4.0
Hardware          : ALPHA x86
Issue type        : kbprb
Solution Type     : kbfix

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