STOP 0xA in Netbt.sys Occurs on Domain Master Browser (243478)


The information in this article applies to:

  • Microsoft Windows NT Server 4.0
  • Microsoft Windows NT Server, Enterprise Edition 4.0
This article was previously published under Q243478

SYMPTOMS

Your domain master browser (generally a primary domain controller) may stop responding and you may receive a "Stop OxA in Netbt.sys" error message on a blue screen with the following parameters: 0x000000fc, 0x00000002, 0x00000000, 0xfc7ac47a.

NOTE: The fourth parameter may vary, but the error is in the Netbt.sys driver address space.

CAUSE

This behavior occurs if the master browser receives a broadcast packet with a source address of 0.0.0.0. When the master browser attempts to respond to the broadcast packet, a structure used by NetBT is not filled out correctly.

RESOLUTION

A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are 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 about support costs, visit the following Microsoft Web site:

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

NOTE: In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual 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
   --------------------------------------------------
   10/11/99   05:12p   123,152   Netbt.sys   Intel
   10/11/99   05:11p   222,896   Netbt.sys   Alpha

STATUS

Microsoft has confirmed that this is a problem in Windows NT 4.0.
Modification Type:MinorLast Reviewed:9/23/2005
Keywords:kbHotfixServer kbQFE kbbug kbfix KB243478
©2004 Microsoft Corporation. All rights reserved.