DOCUMENT:Q293498  08-MAY-2002  [winnt]
TITLE   :The Computer Hangs with a Deadlock in Ndis.sys
PRODUCT :Microsoft Windows NT
PROD/VER::4.0 SP6a
OPER/SYS:
KEYWORDS:kbWinNT400nospFix

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The information in this article applies to:

 - Microsoft Windows NT Server version 4.0 SP6a 
 - Microsoft Windows NT Server, Enterprise Edition version 4.0 SP6a 
 - Microsoft Windows NT Workstation version 4.0 SP6a 
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SYMPTOMS
========

Your computer may intermittently stop responding (hang).


CAUSE
=====

This problem occurs because the driver does not restore the IRQ level when an
error occurs.

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   Version        Size     File name  Platform
   ---------------------------------------------------------------
   29-Mar-2001  05:23  4.0.1381.7095  121,872  Ndis.sys   x86
   29-Mar-2001  05:18  4.0.1381.7095  213,840  Ndis.sys   Alpha

NOTE: Because of file dependencies, this hotfix requires Microsoft Windows NT 4.0
Service Pack 6a.



STATUS
======

Microsoft has confirmed this to be a problem in the Microsoft products that are
listed at the beginning of this article.

Additional query words:

======================================================================
Keywords          : kbWinNT400nospFix 
Technology        : kbWinNTsearch kbWinNTWsearch kbWinNTW400search kbWinNT400search kbWinNTSsearch kbWinNTSEntSearch kbWinNTS400sp6 kbWinNTS400search kbWinNTSEnt400SP6a kbWinNTW400SP6a
Version           : :4.0 SP6a
Hardware          : ALPHA x86
Issue type        : kbbug
Solution Type     : kbfix

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