You cannot use DirectAccess to connect to a corporate network from a computer that is running Windows 7 or Windows Server 2008 R2

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Article ID: 978738 - View products that this article applies to.
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SYMPTOMS

Consider the following scenario:
  • You have a computer that is running Windows 7 or Windows Server 2008 R2.
  • You open the Group Policy Management Editor window, and then you configure the Name Resolution Policy Table (NRPT) to use DNS server name instead of using the IP address.
  • You try to connect to a corporate network by using the DirectAccess feature.
  • You receive a DNS response that only includes a CNAME record. The DNS response does not have a DNS IPv6 (AAAA) resource record from the DNS server.
In this scenario, the fail-over action is not successful when the DNS query on the computer is failed over to the next configured DNS server. This behavior does not let you connect to the corporate network.

RESOLUTION

To resolve this issue, apply this hotfix on the computer that has the DirectAccess feature enabled. After you apply this hotfix, you receive a DNS response that does not include an AAAA resource record and then the computer falls back to use the DNS server that is configured in NRPT.

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, you must be running Windows 7 or Windows Server 2008 R2.

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 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 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 7
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Dnsapi.dll6.1.7600.20621270,33619-Jan-201011:55x86
Dnscacheugc.exe6.1.7600.2062128,67219-Jan-201011:54x86
Dnsrslvr.dll6.1.7600.20621132,60819-Jan-201011:55x86
For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Dnsapi.dll6.1.7600.20621356,86419-Jan-201010:26x64
Dnscacheugc.exe6.1.7600.2062130,20819-Jan-201010:24x64
Dnsrslvr.dll6.1.7600.20621182,27219-Jan-201010:26x64
For all supported IA-64-based versions of Windows Server 2008 R2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Dnsapi.dll6.1.7600.20621686,08019-Jan-201008:57IA-64
Dnscacheugc.exe6.1.7600.2062162,46419-Jan-201008:54IA-64
Dnsrslvr.dll6.1.7600.16385354,81614-Jul-200901:46IA-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 Name Resolution Policy Table (NRPT), visit the following Microsoft Web site:
General information about the Name Resolution Policy Table (NRPT)
For more information about DirectAccess connectivity, visit the following Microsoft Web site:
General information about the DirectAccess connectivity
For more information about the technical overview of DirectAccess, visit the following Microsoft Web site:
General information of the technical overview of DirectAccess
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 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 size1,674
Date (UTC)19-Jan-2010
Time (UTC)15:15
PlatformNot applicable
File nameX86_8f5fb5442a9f284280f3ef11ef60003a_31bf3856ad364e35_6.1.7600.20621_none_00442313b676cc0d.manifest
File versionNot applicable
File size698
Date (UTC)19-Jan-2010
Time (UTC)15:15
PlatformNot applicable
File nameX86_microsoft-windows-dns-client_31bf3856ad364e35_6.1.7600.20621_none_e27f51f7fc9d85f2.manifest
File versionNot applicable
File size55,896
Date (UTC)19-Jan-2010
Time (UTC)13:41
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_6c442cce8a932681e89fc9f263c9cc8c_31bf3856ad364e35_6.1.7600.20621_none_1335e7d574b3505a.manifest
File versionNot applicable
File size1,046
Date (UTC)19-Jan-2010
Time (UTC)15:15
PlatformNot applicable
File nameAmd64_f256410d5ae0eda7d19f7021b1c20d52_31bf3856ad364e35_6.1.7600.20621_none_2fa86181f281fab3.manifest
File versionNot applicable
File size702
Date (UTC)19-Jan-2010
Time (UTC)15:15
PlatformNot applicable
File nameAmd64_microsoft-windows-dns-client_31bf3856ad364e35_6.1.7600.20621_none_3e9ded7bb4faf728.manifest
File versionNot applicable
File size55,902
Date (UTC)19-Jan-2010
Time (UTC)13:41
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size1,906
Date (UTC)19-Jan-2010
Time (UTC)15:15
PlatformNot applicable
File nameWow64_microsoft-windows-dns-client_31bf3856ad364e35_6.1.7600.20621_none_48f297cde95bb923.manifest
File versionNot applicable
File size51,900
Date (UTC)19-Jan-2010
Time (UTC)13:28
PlatformNot applicable
Additional files for all supported IA-64-based versions of Windows Server 2008 R2
Collapse this tableExpand this table
File nameIa64_cd67af303afa79001feaaff203961aae_31bf3856ad364e35_6.1.7600.20621_none_c6430ec7f689cb83.manifest
File versionNot applicable
File size1,044
Date (UTC)19-Jan-2010
Time (UTC)15:15
PlatformNot applicable
File nameIa64_microsoft-windows-dns-client_31bf3856ad364e35_6.1.7600.20621_none_e280f5edfc9b8eee.manifest
File versionNot applicable
File size57,759
Date (UTC)19-Jan-2010
Time (UTC)15:15
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size1,684
Date (UTC)19-Jan-2010
Time (UTC)15:15
PlatformNot applicable
File nameWow64_microsoft-windows-dns-client_31bf3856ad364e35_6.1.7600.20621_none_48f297cde95bb923.manifest
File versionNot applicable
File size51,900
Date (UTC)19-Jan-2010
Time (UTC)13:28
PlatformNot applicable

Properties

Article ID: 978738 - Last Review: February 26, 2010 - Revision: 2.0
APPLIES TO
  • Windows 7 Enterprise
  • 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 Standard
  • Windows Server 2008 R2 Standard without Hyper-V
  • Windows Web Server 2008 R2
Keywords: 
kbexpertiseadvanced kbqfe kbhotfixserver kbfix kbsurveynew kbautohotfix KB978738

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