The SNMP service does not respond to any SNMP requests after a Group Policy refresh in Windows Vista, in Windows Server 2008, in Windows 7 or in Windows Server 2008 R2

Symptoms

Consider the following scenario:

  • You install the Simple Network Management Protocol (SNMP) service on a computer that is running Windows Vista, Windows Server 2008, Windows 7 or Windows Server 2008 R2.

  • You manually update the Group Policy settings on this computer. Or, the settings are automatically refreshed.


In this scenario, the SNMP service may not respond to the SNMP requests. Additionally, you have to restart the SNMP service to recover from this issue.

Cause

This issue occurs because the SNMP service cannot access some registry keys at a certain time when the Group Policy settings are refreshed. This certain time is the delay between when some registry keys are deleted and when the registry keys are recreated. However, the SNMP service does not retry to register the registry key change notification. Therefore, the SNMP service cannot read these registry keys after they are recreated and rejects all SNMP requests.

Note The SNMP service registers a registry key change notification when its service starts.

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=supportNote 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 one of the following operating systems:

  • Windows Vista Service Pack 2 (SP2)

  • Windows Server 2008 Service Pack 2 (SP2)

  • Windows 7

  • Windows Server 2008 R2

For more information about how to obtain a Windows Vista service pack, click the following article number to view the article in the Microsoft Knowledge Base:

935791 How to obtain the latest Windows Vista service pack

For more information about how to obtain a Windows Server 2008 service pack, click the following article number to view the article in the Microsoft Knowledge Base:

968849 How to obtain the latest service pack for Windows Server 2008

Registry information

Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:

322756 How to back up and restore the registry in WindowsTo use one of the hotfixes in this package, you must create a registry key. To do this, follow these steps:

  1. Click Start start button , type regedit in the Start Search box, and then press ENTER.

  2. Locate and then click the following registry subkey:

    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SNMP\Parameters

  3. On the Edit menu, point to New, and then click DWORD Value.

  4. Type PolicyNotificationRetries, and then press ENTER.

  5. Right-click PolicyNotificationRetries, and then click Modify.

  6. In the Value data box, type 5, and then click OK.

  7. Restart the computer to apply the change.

Note The value of the PolicyNotificationRetries registry key is the number of retries. If you set this value to 10, the SNMP service retries up to 10 times to register the registry change notification.

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 Vista and Windows Server 2008 file information notes

Important Windows Vista hotfixes and Windows Server 2008 hotfixes are included in the same packages. However, only "Windows Vista" is listed on the Hotfix Request page. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows Vista" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.

  • The files that apply to a specific product, SR_Level (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table.

    Version

    Product

    SR_Level

    Service branch

    6.0.600
    2.
    22xxx

    Windows Vista and Windows Server 2008

    SP2

    LDR

  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows Server 2008 and for Windows Vista" section. MUM files and MANIFEST files, and the associated security catalog (.cat) files, are extremely important to maintaining the state of the updated component. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.

For all supported x86-based versions of Windows Server 2008 and of Windows Vista

File name

File version

File size

Date

Time

Platform

Snmp.exe

6.0.6002.22399

47,616

06-May-2010

15:22

x86

For all supported x64-based versions of Windows Server 2008 and of Windows Vista

File name

File version

File size

Date

Time

Platform

Snmp.exe

6.0.6002.22399

50,176

06-May-2010

15:38

x64

Snmp.exe

6.0.6002.22399

47,616

06-May-2010

15:22

x86

For all supported IA-64-based versions of Windows Server 2008

File name

File version

File size

Date

Time

Platform

Snmp.exe

6.0.6002.22399

116,224

06-May-2010

15:34

IA-64

Snmp.exe

6.0.6002.22399

47,616

06-May-2010

15:22

x86

Windows 7 and Windows Server 2008 R2 file information notes


Important Windows 7 hotfixes and Windows Server 2008 R2 hotfixes are included in the same packages. However, hotfixes on the Hotfix Request page are listed under both operating systems. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 7/Windows Server 2008 R2" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.

  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows Server 2008 R2 and for Windows 7" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are extremely important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.

For all supported x86-based versions of Windows 7

File name

File version

File size

Date

Time

Platform

Snmp.exe

6.1.7600.20784

47,616

19-Aug-2010

06:24

x86

For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2

File name

File version

File size

Date

Time

Platform

Snmp.exe

6.1.7600.20784

49,664

19-Aug-2010

07:39

x64

Snmp.exe

6.1.7600.20784

47,616

19-Aug-2010

06:24

x86

For all supported IA-64-based versions of Windows Server 2008 R2

File name

File version

File size

Date

Time

Platform

Snmp.exe

6.1.7600.20784

116,224

19-Aug-2010

06:07

IA-64

Snmp.exe

6.1.7600.20784

47,616

19-Aug-2010

06:24

x86

Workaround

Workaround for Windows Vista and for Windows Server 2008

To work around the issue, restart the SNMP service.

Workaround for Windows 7 and for Windows Server 2008 R2

To work around the issue, restart the SNMP service.

Status

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

More Information

For more information, click the following article number to view the article in the Microsoft Knowledge Base:

972840 The SNMP service does not respond to all SNMP requests on a computer that is running Windows Server 2003 after the Group Policy settings are refreshed

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

Additional file information

Additional file information for Windows Vista and for Windows Server 2008

Additional files for all supported x86-based versions of Windows Vista and of Windows Server 2008

File name

Update.mum

File version

Not applicable

File size

2,987

Date (UTC)

07-May-2010

Time (UTC)

05:04

Platform

Not applicable

File name

X86_44c9b461bdeaa6131f4a986a1dbeb509_31bf3856ad364e35_6.0.6002.22399_none_b4e8fba137a2bbfa.manifest

File version

Not applicable

File size

706

Date (UTC)

07-May-2010

Time (UTC)

05:04

Platform

Not applicable

File name

X86_microsoft-windows-snmp-agent-service_31bf3856ad364e35_6.0.6002.22399_none_f94cace66ec79f05.manifest

File version

Not applicable

File size

20,396

Date (UTC)

06-May-2010

Time (UTC)

19:23

Platform

Not applicable

Additional files for all supported x64-based versions of Windows Vista and of Windows Server 2008

File name

Amd64_6b779b0c4f126283722db4fde4a4b0cf_31bf3856ad364e35_6.0.6002.22399_none_31cce4b24a6353a8.manifest

File version

Not applicable

File size

1,062

Date (UTC)

07-May-2010

Time (UTC)

05:04

Platform

Not applicable

File name

Amd64_microsoft-windows-snmp-agent-service_31bf3856ad364e35_6.0.6002.22399_none_556b486a2725103b.manifest

File version

Not applicable

File size

20,726

Date (UTC)

06-May-2010

Time (UTC)

19:16

Platform

Not applicable

File name

Update.mum

File version

Not applicable

File size

3,011

Date (UTC)

07-May-2010

Time (UTC)

05:04

Platform

Not applicable

File name

Wow64_microsoft-windows-snmp-agent-service_31bf3856ad364e35_6.0.6002.22399_none_5fbff2bc5b85d236.manifest

File version

Not applicable

File size

10,339

Date (UTC)

06-May-2010

Time (UTC)

19:18

Platform

Not applicable

Additional files for all supported IA-64-based versions of Windows Server 2008

File name

Ia64_0e6f3862b2bea6fafe5d54cf36c7fd51_31bf3856ad364e35_6.0.6002.22399_none_678d6414e798ee00.manifest

File version

Not applicable

File size

1,060

Date (UTC)

07-May-2010

Time (UTC)

05:04

Platform

Not applicable

File name

Ia64_microsoft-windows-snmp-agent-service_31bf3856ad364e35_6.0.6002.22399_none_f94e50dc6ec5a801.manifest

File version

Not applicable

File size

20,716

Date (UTC)

06-May-2010

Time (UTC)

18:37

Platform

Not applicable

File name

Update.mum

File version

Not applicable

File size

1,560

Date (UTC)

07-May-2010

Time (UTC)

05:04

Platform

Not applicable

File name

Wow64_microsoft-windows-snmp-agent-service_31bf3856ad364e35_6.0.6002.22399_none_5fbff2bc5b85d236.manifest

File version

Not applicable

File size

10,339

Date (UTC)

06-May-2010

Time (UTC)

19:18

Platform

Not applicable

Additional file information for Windows 7 and for Windows Server 2008 R2

Additional files for all supported x86-based versions of Windows 7

File name

Update.mum

File version

Not Applicable

File size

1,619

Date (UTC)

19-Aug-2010

Time (UTC)

15:44

Platform

Not Applicable

File name

X86_8673dd3e584c223ff37b64f6c459edf7_31bf3856ad364e35_6.1.7600.20784_none_985c9eba936eef4e.manifest

File version

Not Applicable

File size

706

Date (UTC)

19-Aug-2010

Time (UTC)

15:44

Platform

Not Applicable

File name

X86_microsoft-windows-snmp-agent-service_31bf3856ad364e35_6.1.7600.20784_none_f793d9bdd2b4ec25.manifest

File version

Not Applicable

File size

17,014

Date (UTC)

19-Aug-2010

Time (UTC)

06:58

Platform

Not Applicable

Additional files for all supported x64-based versions of Windows 7 and of Windows Server 2008 R2

File name

Amd64_39ae9d9e3391ff09fc792be85d4a6306_31bf3856ad364e35_6.1.7600.20784_none_fd9719099dce601b.manifest

File version

Not Applicable

File size

1,062

Date (UTC)

19-Aug-2010

Time (UTC)

15:44

Platform

Not Applicable

File name

Amd64_microsoft-windows-snmp-agent-service_31bf3856ad364e35_6.1.7600.20784_none_53b275418b125d5b.manifest

File version

Not Applicable

File size

17,020

Date (UTC)

19-Aug-2010

Time (UTC)

08:10

Platform

Not Applicable

File name

Update.mum

File version

Not Applicable

File size

1,826

Date (UTC)

19-Aug-2010

Time (UTC)

15:44

Platform

Not Applicable

File name

Wow64_microsoft-windows-snmp-agent-service_31bf3856ad364e35_6.1.7600.20784_none_5e071f93bf731f56.manifest

File version

Not Applicable

File size

7,298

Date (UTC)

19-Aug-2010

Time (UTC)

06:55

Platform

Not Applicable

Additional files for all supported IA-64-based versions of Windows Server 2008 R2

File name

Ia64_a9d355a11e38b87cdefdcc812fc4bf86_31bf3856ad364e35_6.1.7600.20784_none_f5aa812d55370789.manifest

File version

Not Applicable

File size

1,060

Date (UTC)

19-Aug-2010

Time (UTC)

15:43

Platform

Not Applicable

File name

Ia64_microsoft-windows-snmp-agent-service_31bf3856ad364e35_6.1.7600.20784_none_f7957db3d2b2f521.manifest

File version

Not Applicable

File size

17,017

Date (UTC)

19-Aug-2010

Time (UTC)

07:42

Platform

Not Applicable

File name

Update.mum

File version

Not Applicable

File size

1,435

Date (UTC)

19-Aug-2010

Time (UTC)

15:43

Platform

Not Applicable

File name

Wow64_microsoft-windows-snmp-agent-service_31bf3856ad364e35_6.1.7600.20784_none_5e071f93bf731f56.manifest

File version

Not Applicable

File size

7,298

Date (UTC)

19-Aug-2010

Time (UTC)

06:55

Platform

Not Applicable

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