Client computer uses site-less SRV records after you restart the computer in Windows 7 or in Windows Server 2008 R2

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Article ID: 2666938 - View products that this article applies to.
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SYMPTOMS

When you restart a client computer that is running Windows 7 or Windows Server 2008 R2 in an Active Directory domain environment, the Net Logon service starts before the network interface is initialized. This behavior causes the status of the network adapter to change to intermediate. Additionally, this behavior causes the IP address to change even though the network adapter is assigned to the same IP address eventually. In this situation, the client computer uses site-less LDAP DNS Server (SRV) records (_ldap._tcp.DnsDomainName or _ldap._tcp.dc._msdcs.DnsDomainName) to locate the domain controller (DC).

If this issue occurs in an environment in which only the hub DCs for the site-less SRV records are registered in DNS, and if the client computer's remote branch site is disconnected from the hub site, then the client computer cannot locate a DC. However, the local branch DCs are available in DNS when the hub DCs cannot be reached from the branch site. Therefore, the client computer does not recognize the local branch DCs as DCs.

CAUSE

This issue occurs because the Net Logon service invalidates the cached site information in the registry prematurely.

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 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 7 or 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 7 and Windows Server 2008 R2 file information notes
  • The files that apply to a specific product, milestone (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
    VersionProductMilestoneService 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
Netlogon.dll6.1.7600.21149564,73611-Feb-201205:34x86
Netlogon.dll6.1.7601.21921566,78411-Feb-201205:24x86
For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Netlogon.dll6.1.7600.21149693,76011-Feb-201206:31x64
Netlogon.dll6.1.7601.21921698,88011-Feb-201206:23x64
Netlogon.dll6.1.7600.21149564,73611-Feb-201205:34x86
Netlogon.dll6.1.7601.21921566,78411-Feb-201205:24x86
For all supported IA-64-based versions of Windows Server 2008 R2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Netlogon.dll6.1.7600.211491,150,46411-Feb-201205:19IA-64
Netlogon.dll6.1.7601.219211,156,60811-Feb-201205:17IA-64
Netlogon.dll6.1.7600.21149564,73611-Feb-201205:34x86
Netlogon.dll6.1.7601.21921566,78411-Feb-201205:24x86

STATUS

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

MORE INFORMATION

If you enable debug logging for the Net Logon service by using the method that is described in Microsoft Knowledge Base (KB) article 109626, you receive a sequence that resembles the following. The sequence indicates how the site name is invalidated.
10/20 13:20:01 [SITE] Setting site name to 'MyCachedSiteName'
10/20 13:20:01 [SITE] Hint avoided. 31
10/20 13:20:01 [SESSION] \Device\NetBT_Tcpip_{6964FC65-C026-4EC4-A8B9-29C2019401AC}: Transport Added (169.254.237.187)
10/20 13:20:01 [CRITICAL] IPV6SocketAddressList is too small 0.
10/20 13:20:01 [SESSION] Winsock Addrs: 169.254.237.187 (1) Address changed.
10/20 13:20:01 [SESSION] V6 Winsock Addrs: (0) 
10/20 13:20:01 [CRITICAL] Address list changed since last boot. (Forget DynamicSiteName.)
10/20 13:20:01 [SITE] Setting site name to '(null)'
For more information about KB article 109626, click the following article number to view the article in the Microsoft Knowledge Base:
109626 Enabling debug logging for the Net Logon service
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
If the hotfix is installed, you may also receive the new error messages that is mentioned in Microsoft Knowledge Base (KB) article 2654097. For more information about 2654097, click the following article number to view the article in the Microsoft Knowledge Base:
2654097 New event log entries that track NTLM authentication delays and failures in Windows Server 2008 R2 are available

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 nameX86_microsoft-windows-security-netlogon_31bf3856ad364e35_6.1.7600.21149_none_fe46ce8fb2473556.manifest
File versionNot Applicable
File size35,541
Date (UTC)11-Feb-2012
Time (UTC)06:00
PlatformNot Applicable
File nameX86_microsoft-windows-security-netlogon_31bf3856ad364e35_6.1.7601.21921_none_003af2e1af64688d.manifest
File versionNot Applicable
File size35,989
Date (UTC)11-Feb-2012
Time (UTC)05:52
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-security-netlogon_31bf3856ad364e35_6.1.7600.21149_none_5a656a136aa4a68c.manifest
File versionNot Applicable
File size35,547
Date (UTC)11-Feb-2012
Time (UTC)07:01
PlatformNot Applicable
File nameAmd64_microsoft-windows-security-netlogon_31bf3856ad364e35_6.1.7601.21921_none_5c598e6567c1d9c3.manifest
File versionNot Applicable
File size35,995
Date (UTC)11-Feb-2012
Time (UTC)06:50
PlatformNot Applicable
File nameWow64_microsoft-windows-security-netlogon_31bf3856ad364e35_6.1.7600.21149_none_64ba14659f056887.manifest
File versionNot Applicable
File size16,596
Date (UTC)11-Feb-2012
Time (UTC)05:52
PlatformNot Applicable
File nameWow64_microsoft-windows-security-netlogon_31bf3856ad364e35_6.1.7601.21921_none_66ae38b79c229bbe.manifest
File versionNot Applicable
File size16,596
Date (UTC)11-Feb-2012
Time (UTC)05:42
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-security-netlogon_31bf3856ad364e35_6.1.7600.21149_none_fe487285b2453e52.manifest
File versionNot Applicable
File size35,544
Date (UTC)11-Feb-2012
Time (UTC)06:52
PlatformNot Applicable
File nameIa64_microsoft-windows-security-netlogon_31bf3856ad364e35_6.1.7601.21921_none_003c96d7af627189.manifest
File versionNot Applicable
File size35,992
Date (UTC)11-Feb-2012
Time (UTC)06:42
PlatformNot Applicable
File nameWow64_microsoft-windows-security-netlogon_31bf3856ad364e35_6.1.7600.21149_none_64ba14659f056887.manifest
File versionNot Applicable
File size16,596
Date (UTC)11-Feb-2012
Time (UTC)05:52
PlatformNot Applicable
File nameWow64_microsoft-windows-security-netlogon_31bf3856ad364e35_6.1.7601.21921_none_66ae38b79c229bbe.manifest
File versionNot Applicable
File size16,596
Date (UTC)11-Feb-2012
Time (UTC)05:42
PlatformNot Applicable

Properties

Article ID: 2666938 - Last Review: April 17, 2012 - Revision: 2.0
APPLIES TO
  • Windows 7 Enterprise
  • Windows 7 Professional
  • Windows 7 Ultimate
  • Windows Server 2008 R2 Datacenter
  • Windows Server 2008 R2 Enterprise
  • Windows Server 2008 R2 Standard
  • Windows Server 2008 R2 for Itanium-Based Systems
  • Windows Server 2008 R2 Foundation
  • Windows Web Server 2008 R2
Keywords: 
kbautohotfix kbhotfixserver kbqfe kbfix kbsurveynew kbexpertiseinter KB2666938

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