When you use a VPN connection that uses Smart Card authentication on a client computer that is running Windows Vista, Windows Server 2008, Windows 7 or Windows Server 2008 R2, the computer stops responding

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Article ID: 975212 - View products that this article applies to.
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SYMPTOMS

Consider the following scenario:
  • You install a Third-party legacy Transport Driver Interface (TDI) filter driver on a client computer that is running one of the following operating systems:
    • Windows Vista
    • Windows Server 2008
    • Windows 7
    • Windows Server 2008 R2


    Note TDI filter drivers are used by some antivirus or firewall applications to monitor network traffics, such as User Datagram Protocol (UDP) packets.
  • You create a virtual private network (VPN) connection that uses Smart Card authentication to connect to a server that is running Routing and Remote Access service.
  • Large UDP packets, which are more than 1460 bytes, are sent over the VPN connection.
In this scenario, when you use the VPN connection to connect to the server, the client computer stops responding. Additionally, the VPN connection is lost.

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
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, your computer must be running one of the following operating systems:
  • Windows Vista Service Pack 1 (SP1)
  • Windows Vista Service Pack 2 (SP2)
  • Windows Server 2008
  • 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 install the 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 install the 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

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.
    Collapse this tableExpand this table
    VersionProductSR_LevelService branch
    6.0.600 1 . 22xxxWindows Vista and Windows Server 2008SP1LDR
    6.0.600 2 . 22xxxWindows Vista and Windows Server 2008SP2LDR
  • Service Pack 1 is integrated into the original release version of Windows Server 2008.
  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately . MUM and MANIFEST files, and the associated security catalog (.cat) files, are critical to maintaining the state of the updated component. The security catalog files (attributes 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
Afd.sys6.0.6001.22512273,92001-Sep-200910:53x86
Afd.sys6.0.6002.22216273,92001-Sep-200910:30x86
For all supported x64-based versions of Windows Server 2008 and of Windows Vista
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Afd.sys6.0.6001.22512408,06401-Sep-200911:17x64
Afd.sys6.0.6002.22216406,01601-Sep-200910:44x64
For all supported IA-64-based versions of Windows Server 2008
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Afd.sys6.0.6001.22512986,11201-Sep-200911:22IA-64
Afd.sys6.0.6002.22216986,11201-Sep-200910:44IA-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
Afd.sys6.1.7600.21010338,94416-Jul-201102:16x86
Afd.sys6.1.7601.21772338,94416-Jul-201102:42x86
For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Afd.sys6.1.7600.21010499,71216-Jul-201102:41x64
Afd.sys6.1.7601.21772499,20016-Jul-201102:35x64
For all supported IA-64-based versions of Windows Server 2008 R2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Afd.sys6.1.7600.210101,115,64816-Jul-201101:46IA-64
Afd.sys6.1.7601.217721,115,64816-Jul-201101:51IA-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 nameUpdate.mum
File versionNot Applicable
File size3,565
Date (UTC)02-Sep-2009
Time (UTC)04:24
PlatformNot Applicable
File nameX86_microsoft-windows-winsock-core_31bf3856ad364e35_6.0.6001.22512_none_d869179d77910255.manifest
File versionNot Applicable
File size30,064
Date (UTC)01-Sep-2009
Time (UTC)14:26
PlatformNot Applicable
File nameX86_microsoft-windows-winsock-core_31bf3856ad364e35_6.0.6002.22216_none_da538aad74b3bcd5.manifest
File versionNot Applicable
File size30,064
Date (UTC)01-Sep-2009
Time (UTC)13:54
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_microsoft-windows-winsock-core_31bf3856ad364e35_6.0.6001.22512_none_3487b3212fee738b.manifest
File versionNot Applicable
File size30,328
Date (UTC)01-Sep-2009
Time (UTC)14:52
PlatformNot Applicable
File nameAmd64_microsoft-windows-winsock-core_31bf3856ad364e35_6.0.6002.22216_none_367226312d112e0b.manifest
File versionNot Applicable
File size30,328
Date (UTC)01-Sep-2009
Time (UTC)13:43
PlatformNot Applicable
File nameUpdate.mum
File versionNot Applicable
File size3,593
Date (UTC)02-Sep-2009
Time (UTC)04:24
PlatformNot Applicable
Additional files for all supported IA-64-based versions of Windows Server 2008
Collapse this tableExpand this table
File nameIa64_microsoft-windows-winsock-core_31bf3856ad364e35_6.0.6001.22512_none_d86abb93778f0b51.manifest
File versionNot Applicable
File size30,322
Date (UTC)01-Sep-2009
Time (UTC)14:48
PlatformNot Applicable
File nameIa64_microsoft-windows-winsock-core_31bf3856ad364e35_6.0.6002.22216_none_da552ea374b1c5d1.manifest
File versionNot Applicable
File size30,322
Date (UTC)01-Sep-2009
Time (UTC)13:27
PlatformNot Applicable
File nameUpdate.mum
File versionNot Applicable
File size2,748
Date (UTC)02-Sep-2009
Time (UTC)04:24
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 size2,765
Date (UTC)18-Jul-2011
Time (UTC)22:41
PlatformNot Applicable
File nameX86_microsoft-windows-winsock-core_31bf3856ad364e35_6.1.7600.21010_none_d88ec522d8aa3746.manifest
File versionNot Applicable
File size73,506
Date (UTC)16-Jul-2011
Time (UTC)04:55
PlatformNot Applicable
File nameX86_microsoft-windows-winsock-core_31bf3856ad364e35_6.1.7601.21772_none_da366b12d5ff4a44.manifest
File versionNot Applicable
File size73,506
Date (UTC)16-Jul-2011
Time (UTC)05:29
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_microsoft-windows-winsock-core_31bf3856ad364e35_6.1.7600.21010_none_34ad60a69107a87c.manifest
File versionNot Applicable
File size73,510
Date (UTC)16-Jul-2011
Time (UTC)05:59
PlatformNot Applicable
File nameAmd64_microsoft-windows-winsock-core_31bf3856ad364e35_6.1.7601.21772_none_365506968e5cbb7a.manifest
File versionNot Applicable
File size73,510
Date (UTC)16-Jul-2011
Time (UTC)06:22
PlatformNot Applicable
File nameUpdate.mum
File versionNot Applicable
File size3,207
Date (UTC)18-Jul-2011
Time (UTC)22:41
PlatformNot Applicable
Additional files for all supported IA-64-based versions of Windows Server 2008 R2
Collapse this tableExpand this table
File nameIa64_microsoft-windows-winsock-core_31bf3856ad364e35_6.1.7600.21010_none_d8906918d8a84042.manifest
File versionNot Applicable
File size73,508
Date (UTC)16-Jul-2011
Time (UTC)05:48
PlatformNot Applicable
File nameIa64_microsoft-windows-winsock-core_31bf3856ad364e35_6.1.7601.21772_none_da380f08d5fd5340.manifest
File versionNot Applicable
File size73,508
Date (UTC)16-Jul-2011
Time (UTC)06:15
PlatformNot Applicable
File nameUpdate.mum
File versionNot Applicable
File size2,160
Date (UTC)18-Jul-2011
Time (UTC)22:41
PlatformNot Applicable

Properties

Article ID: 975212 - Last Review: October 7, 2011 - Revision: 3.0
APPLIES TO
  • Windows Vista Home Basic
  • Windows Vista Home Premium
  • Windows Vista Enterprise
  • Windows Vista Business
  • Windows Vista Ultimate
  • Windows Web Server 2008
  • Windows Server 2008 Standard
  • Windows Server 2008 Enterprise
  • Windows Server 2008 Datacenter
  • 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 Enterprise
  • Windows Server 2008 R2 for Itanium-Based Systems
  • Windows Server 2008 R2 Foundation
  • Windows Server 2008 R2 Standard
Keywords: 
kbfix kbautohotfix kbexpertiseadvanced kbsurveynew kbqfe KB975212

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