"0x000000C2" Stop error occurs when you use IPsec on a computer that is running Windows Server 2008, Windows Vista, Windows Server 2008 R2 or Windows 7 in a network that uses IPsec NAT-T security

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Article ID: 2639793 - View products that this article applies to.
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Symptoms

Consider the following scenario:
  • You join a computer to a network. The computer is running one of the following operating systems:
    • Windows Vista
    • Windows Server 2008
    • Windows 7
    • Windows Server 2008 R2
  • The network is configured to use Internet Protocol security (IPsec) network address translation traversal (NAT-T) security.
  • You use IPsec to communicate with another computer in the network.
In this scenario, you randomly receive a Stop error message that resembles the following, and then the computer restarts:
STOP 0x000000C2 (parameter1, parameter2, parameter3, parameter4)
Notes
  • This Stop error describes a BAD_POOL_CALLER issue.
  • The four parameters in this error message vary, depending on the configuration of the computer.
  • Not all "0x000000C2" Stop errors are caused by this issue.

Cause

This issue occurs because of a race condition in the Tcpip.sys driver. The Tcpip.sys driver does not handle the reference count of an object correctly. Therefore, a thread tries to free an object that was already freed by another thread, and the Windows triggers a Stop error.

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 website:
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 one of the following operating systems:
  • Windows Vista Service Pack 2 (SP2)
  • Windows Server 2008 Service Pack 2 (SP2)
  • Windows 7
  • Windows 7 Service Pack 1 (SP1)
  • Windows Server 2008 R2
  • Windows Server 2008 R2 Service Pack 1 (SP1)
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
For more information about how to obtain a Windows 7 or a Windows Server 2008 R2 service pack, click the following article number to view the article in the Microsoft Knowledge Base:
976932 Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2

Registry information

To use the hotfix in this package, you do not have to make any changes to the registry.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The global 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.
    Collapse this tableExpand this table
    VersionProductSR_LevelService branch
    6.0.600 2 . 22xxxWindows Vista and Windows Server 2008SP2LDR
  • 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
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Tcpipreg.sys6.0.6002.2274831,23228-Nov-201113:42x86
Tcpip.sys6.0.6002.22748913,28028-Nov-201119:53x86
For all supported x64-based versions of Windows Server 2008 and of Windows Vista
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Tcpipreg.sys6.0.6002.2274840,44828-Nov-201113:58x64
Tcpip.sys6.0.6002.227481,423,23228-Nov-201119:50x64
For all supported IA-64-based versions of Windows Server 2008
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Tcpipreg.sys6.0.6002.2274880,89628-Nov-201114:03IA-64
Tcpip.sys6.0.6002.227482,968,96028-Nov-201119:46IA-64
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 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.
    Collapse this tableExpand this table
    VersionProductSR_LevelService branch
    6.1.760 0 . 21xxxWindows 7 and Windows Server 2008 R2RTMLDR
    6.1.760 1 . 21xxxWindows 7 and Windows Server 2008 R2SP1LDR
  • 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
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Fwpkclnt.sys6.1.7600.21111187,24821-Dec-201105:43x86
Tcpip.sys6.1.7600.211111,302,38421-Dec-201105:44x86
Fwpkclnt.sys6.1.7601.21881187,76021-Dec-201106:55x86
Tcpip.sys6.1.7601.218811,303,92021-Dec-201106:55x86
For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Fwpkclnt.sys6.1.7600.21111288,11221-Dec-201106:32x64
Tcpip.sys6.1.7600.211111,878,89621-Dec-201106:32x64
Fwpkclnt.sys6.1.7601.21881288,62421-Dec-201106:35x64
Tcpip.sys6.1.7601.218811,901,42421-Dec-201106:35x64
For all supported IA-64-based versions of Windows Server 2008 R2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Fwpkclnt.sys6.1.7600.21111482,67221-Dec-201105:21IA-64
Tcpip.sys6.1.7600.211113,804,52821-Dec-201105:21IA-64
Fwpkclnt.sys6.1.7601.21881483,18421-Dec-201105:25IA-64
Tcpip.sys6.1.7601.218813,807,08821-Dec-201105:25IA-64

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 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
Collapse this tableExpand this table
File nameX86_54788c253feb43c64308f2c4b7a9ea73_31bf3856ad364e35_6.0.6002.22748_none_4e1ead774fcacebd.manifest
File versionNot applicable
File size702
Date (UTC)28-Nov-2011
Time (UTC)20:00
PlatformNot applicable
File nameX86_9c91b4c7ee744fff6a29fac46d1e4d00_31bf3856ad364e35_6.0.6002.22748_none_1f951b94ca4a29cd.manifest
File versionNot applicable
File size717
Date (UTC)28-Nov-2011
Time (UTC)20:00
PlatformNot applicable
File nameX86_microsoft-windows-l..istry-support-tcpip_31bf3856ad364e35_6.0.6002.22748_none_886a18701bca1055.manifest
File versionNot applicable
File size4,845
Date (UTC)28-Nov-2011
Time (UTC)16:43
PlatformNot applicable
File nameX86_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.0.6002.22748_none_b56af4bb7cc356bf.manifest
File versionNot applicable
File size6,762
Date (UTC)28-Nov-2011
Time (UTC)20:00
PlatformNot applicable
Additional files for all supported x64-based versions of Windows Vista and of Windows Server 2008
Collapse this tableExpand this table
File nameAmd64_5523788a6d97eaa05d5fc71743632d37_31bf3856ad364e35_6.0.6002.22748_none_a7a6de8e6124d886.manifest
File versionNot applicable
File size721
Date (UTC)28-Nov-2011
Time (UTC)20:00
PlatformNot applicable
File nameAmd64_ee8ef99ee182cbf17ce3a528a9a1c3e1_31bf3856ad364e35_6.0.6002.22748_none_d38f98b9f4fb336c.manifest
File versionNot applicable
File size706
Date (UTC)28-Nov-2011
Time (UTC)20:00
PlatformNot applicable
File nameAmd64_microsoft-windows-l..istry-support-tcpip_31bf3856ad364e35_6.0.6002.22748_none_e488b3f3d427818b.manifest
File versionNot applicable
File size5,122
Date (UTC)28-Nov-2011
Time (UTC)15:56
PlatformNot applicable
File nameAmd64_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.0.6002.22748_none_1189903f3520c7f5.manifest
File versionNot applicable
File size6,784
Date (UTC)28-Nov-2011
Time (UTC)20:00
PlatformNot applicable
Additional files for all supported IA-64-based versions of Windows Server 2008
Collapse this tableExpand this table
File nameIa64_dc5287eb47036475b4a2262f83ff5ffe_31bf3856ad364e35_6.0.6002.22748_none_7dc28d72f01d3658.manifest
File versionNot applicable
File size1,066
Date (UTC)28-Nov-2011
Time (UTC)20:00
PlatformNot applicable
File nameIa64_microsoft-windows-l..istry-support-tcpip_31bf3856ad364e35_6.0.6002.22748_none_886bbc661bc81951.manifest
File versionNot applicable
File size5,118
Date (UTC)28-Nov-2011
Time (UTC)15:33
PlatformNot applicable
File nameIa64_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.0.6002.22748_none_b56c98b17cc15fbb.manifest
File versionNot applicable
File size6,773
Date (UTC)28-Nov-2011
Time (UTC)20:00
PlatformNot applicable

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

Additional files for all supported x86-based versions of Windows 7
Collapse this tableExpand this table
File nameUpdate.mum
File versionNot Applicable
File size2,773
Date (UTC)22-Dec-2011
Time (UTC)00:00
PlatformNot Applicable
File nameX86_40197c1530b273e42ba78cb01a40e177_31bf3856ad364e35_6.1.7600.21111_none_b6c6c9e86ca32fec.manifest
File versionNot Applicable
File size702
Date (UTC)22-Dec-2011
Time (UTC)00:00
PlatformNot Applicable
File nameX86_a0fb3955ed6f6490e9f8a4aa7f97d63f_31bf3856ad364e35_6.1.7601.21881_none_9b1a54b0cb1d28de.manifest
File versionNot Applicable
File size702
Date (UTC)22-Dec-2011
Time (UTC)00:00
PlatformNot Applicable
File nameX86_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.1.7600.21111_none_b3c59712e0a26f6a.manifest
File versionNot Applicable
File size3,834
Date (UTC)21-Dec-2011
Time (UTC)06:06
PlatformNot Applicable
File nameX86_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.1.7601.21881_none_b5606c82de016bab.manifest
File versionNot Applicable
File size3,834
Date (UTC)21-Dec-2011
Time (UTC)07:30
PlatformNot Applicable
Additional files for all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
Collapse this tableExpand this table
File nameAmd64_1b6c0a0d2c2851fe1f6dec522eb8dfa2_31bf3856ad364e35_6.1.7600.21111_none_06525b0a8a838442.manifest
File versionNot Applicable
File size706
Date (UTC)22-Dec-2011
Time (UTC)00:01
PlatformNot Applicable
File nameAmd64_ca0bef94e79c5860eb31951e273fbb88_31bf3856ad364e35_6.1.7601.21881_none_fc9bfc8620b821d8.manifest
File versionNot Applicable
File size706
Date (UTC)22-Dec-2011
Time (UTC)00:01
PlatformNot Applicable
File nameAmd64_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.1.7600.21111_none_0fe4329698ffe0a0.manifest
File versionNot Applicable
File size3,838
Date (UTC)21-Dec-2011
Time (UTC)07:05
PlatformNot Applicable
File nameAmd64_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.1.7601.21881_none_117f0806965edce1.manifest
File versionNot Applicable
File size3,838
Date (UTC)21-Dec-2011
Time (UTC)08:11
PlatformNot Applicable
File nameUpdate.mum
File versionNot Applicable
File size3,215
Date (UTC)22-Dec-2011
Time (UTC)00:01
PlatformNot Applicable
Additional files for all supported IA-64-based versions of Windows Server 2008 R2
Collapse this tableExpand this table
File nameIa64_4d8b455c61161755f1a3ea5ed704fdc0_31bf3856ad364e35_6.1.7601.21881_none_4ab8eb4996168cea.manifest
File versionNot Applicable
File size704
Date (UTC)22-Dec-2011
Time (UTC)00:00
PlatformNot Applicable
File nameIa64_f9f56d442a14ea371ac241618aee55cc_31bf3856ad364e35_6.1.7600.21111_none_2ba123660fe32bb5.manifest
File versionNot Applicable
File size704
Date (UTC)22-Dec-2011
Time (UTC)00:00
PlatformNot Applicable
File nameIa64_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.1.7600.21111_none_b3c73b08e0a07866.manifest
File versionNot Applicable
File size3,836
Date (UTC)21-Dec-2011
Time (UTC)07:03
PlatformNot Applicable
File nameIa64_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.1.7601.21881_none_b5621078ddff74a7.manifest
File versionNot Applicable
File size3,836
Date (UTC)21-Dec-2011
Time (UTC)08:03
PlatformNot Applicable
File nameUpdate.mum
File versionNot Applicable
File size1,947
Date (UTC)22-Dec-2011
Time (UTC)00:00
PlatformNot Applicable

Properties

Article ID: 2639793 - Last Review: October 9, 2014 - Revision: 4.0
Applies to
  • Windows Server 2008 Enterprise
  • Windows Server 2008 Enterprise without Hyper-V
  • Windows Server 2008 Datacenter
  • Windows Server 2008 Datacenter without Hyper-V
  • Windows Server 2008 Standard
  • Windows Server 2008 Standard without Hyper-V
  • Windows Server 2008 for Itanium-Based Systems
  • Windows Server 2008 Foundation
  • Windows Web Server 2008
  • Windows Vista Business
  • Windows Vista Business 64-bit Edition
  • Windows Vista Enterprise
  • Windows Vista Enterprise 64-bit Edition
  • Windows Vista Home Basic
  • Windows Vista Home Basic 64-bit Edition
  • Windows Vista Home Premium
  • Windows Vista Home Premium 64-bit Edition
  • Windows Vista Starter
  • Windows Vista Ultimate
  • Windows Vista Ultimate 64-bit Edition
  • Windows 7 Enterprise
  • Windows 7 Home Basic
  • Windows 7 Home Premium
  • Windows 7 Professional
  • Windows 7 Ultimate
  • Windows Server 2008 R2 Datacenter
  • Windows Server 2008 R2 Datacenter without Hyper-V
  • Windows Server 2008 R2 Enterprise
  • Windows Server 2008 R2 Enterprise without Hyper-V
  • Windows Server 2008 R2 for Itanium-Based Systems
  • Windows Server 2008 R2 Foundation
  • Windows Server 2008 R2 Standard
  • Windows Server 2008 R2 Standard without Hyper-V
Keywords: 
kbmdd kbautohotfix kbqfe kbHotfixServer kbfix kbexpertiseadvanced kbsurveynew KB2639793

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