The monitoring of SNMP devices may stop intermittently in System Center Operations Manager or in System Center Essentials

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SYMPTOMS

When you monitor some Simple Network Management Protocol (SNMP) devices by using System Center Operations Manager or System Center Essentials, the monitoring may stop intermittently. This issue affects the SNMP performance collection rules or the SNMP event monitors.
After you restart the OpsMgr Health service or the System Center Management service on the proxy agent, the monitoring of the SNMP devices continues as usual for a while. However, this issue may again occur sometime later.Â
Additionally, the following event is logged in the Operations Manager log when this issue occurs:

Source: HealthService
Date: date
Event ID: 4000
Task Category: Health Service
Level: Error
Keywords: Classic
User: N/A
Computer: computer name
Description:
A monitoring host is unresponsive or has crashed. The status code for the host failure was 2164195371.

Note This issue occurs on a computer that is running any version of System Center Operations Manager or of System Center Essentials.

CAUSE

The issue occurs because of a race condition in the SNMP service.

RESOLUTION

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.
If the hotfix is available for download, there is a “Hotfix download available” section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.
Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support (http://support.microsoft.com/contactus/?ws=support)

Note The “Hotfix download available” form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

To apply this hotfix, you must be running Windows Server 2003 Service Pack 2 (SP2).

Restart requirement

You may have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The English (United States) version of this hotfix installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.

Windows Server 2003 file information notes

  • In addition to the files that are listed in these tables, this hotfix also installs an associated security catalog file (KBnumber.cat) that is signed with a Microsoft digital signature.

For all supported x86-based versions of Windows Server 2003

Collapse this tableExpand this table

File name

File version

File size

Date

Time

Platform

Wsnmp32.dll

5.2.3790.4710

44,032

14-May-2010

15:06

x86

Updspapi.dll

6.3.4.1

379,184

01-Mar-2007

06:10

x86

For all supported x64-based versions of Windows Server 2003

Collapse this tableExpand this table

File name

File version

File size

Date

Time

Platform

SP requirement

Service branch

Wsnmp32.dll

5.2.3790.4710

69,120

14-May-2010

13:00

x64

SP2

SP2QFE

Wwsnmp32.dll

5.2.3790.4710

44,032

14-May-2010

13:00

x86

SP2

SP2QFE\WOW

Updspapi.dll

6.3.4.1

462,128

14-May-2010

13:05

x64

None

Not Applicable

For all supported IA-64-based versions of Windows Server 2003

Collapse this tableExpand this table

File name

File version

File size

Date

Time

Platform

SP requirement

Service branch

Wsnmp32.dll

5.2.3790.4710

131,584

14-May-2010

13:00

IA-64

SP2

SP2QFE

Wwsnmp32.dll

5.2.3790.4710

44,032

14-May-2010

13:00

x86

SP2

SP2QFE\WOW

Updspapi.dll

6.3.4.1

655,152

14-May-2010

13:05

IA-64

None

Not Applicable

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STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the “Applies to” section.



APPLIES TO

  • Microsoft Windows Server 2003 Service Pack 1
  • Microsoft Windows Server 2003 Service Pack 2
  • Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)
  • Microsoft Windows Server 2003, Datacenter x64 Edition
  • Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
  • Microsoft Windows Server 2003, Enterprise x64 Edition
  • Microsoft Windows Server 2003, Standard Edition (32-bit x86)
  • Microsoft Windows Server 2003, Standard x64 Edition
  • Microsoft System Center Operations Manager 2007 Service Pack 1
  • Microsoft System Center Operations Manager 2007 R2
  • Microsoft System Center Operations Manager 2007
  • Microsoft System Center Essentials 2007
  • Microsoft System Center Essentials 2007 Service Pack 1
  • Microsoft System Center Essentials 2010

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