User cannot connect to remote desktop server on a Windows 7-based or Windows Server 2008 R2-based client computer

Not sure if this is the right fix? We've added this issue to our memory dump diagnostic which can confirm.

Symptoms

Assume that you want to establish a remote connection from a computer that is running Windows 7 or Windows Server 2008 R2. You open a Remote Desktop Protocol (RDP) tool to connect to a remote desktop server, and you provide your credentials when prompted. In this situation, you intermittently cannot connect to the remote desktop server. Additionally, you receive an "Access Denied" error message.

Note Network-related applications such as the System Center Configuration Manager console and Active Directory Users and Computers encounter a similar issue when they connect to their respective remote servers.

Cause

This issue occurs because of a timing issue that is caused by an infinite loop in the Lsass.exe process.

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=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 Windows 7 Service Pack 1 (SP1) or Windows Server 2008 R2 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 apply this hotfix, 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.

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 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:

    Version

    Product

    Milestone

    Service branch

    6.1.760
    1.22xxx

    Windows 7 and Windows Server 2008 R2

    SP1

    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 7 and for Windows Server 2008 R2" section. 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, 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

Cng.sys

6.1.7601.22099

369,856

28-Nov-2012

23:02

x86

Ksecdd.sys

6.1.7601.22176

67,416

29-Nov-2012

05:41

x86

Ksecpkg.sys

6.1.7601.22176

136,536

29-Nov-2012

05:41

x86

Lsasrv.dll

6.1.7601.22176

1,040,384

29-Nov-2012

05:33

x86

Lsasrv.mof

Not applicable

13,780

12-Nov-2010

23:53

Not applicable

Lsass.exe

6.1.7601.22176

22,528

29-Nov-2012

05:30

x86

Secur32.dll

6.1.7601.22176

22,016

29-Nov-2012

05:36

x86

Sspicli.dll

6.1.7601.22176

100,352

29-Nov-2012

05:36

x86

Sspisrv.dll

6.1.7601.22176

15,872

29-Nov-2012

05:36

x86

Ncrypt.dll

6.1.7601.22153

220,160

05-Nov-2012

15:29

x86

Schannel.dll

6.1.7601.22153

247,808

05-Nov-2012

15:30

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

Cng.sys

6.1.7601.22099

458,712

28-Nov-2012

23:02

x64

Ksecdd.sys

6.1.7601.22176

95,576

29-Nov-2012

06:08

x64

Ksecpkg.sys

6.1.7601.22176

154,472

29-Nov-2012

06:08

x64

Lsasrv.dll

6.1.7601.22176

1,448,448

29-Nov-2012

06:00

x64

Lsasrv.mof

Not applicable

13,780

12-Nov-2010

23:50

Not applicable

Lsass.exe

6.1.7601.22176

31,232

29-Nov-2012

05:56

x64

Secur32.dll

6.1.7601.22176

28,160

29-Nov-2012

06:03

x64

Sspicli.dll

6.1.7601.22176

136,192

29-Nov-2012

06:04

x64

Sspisrv.dll

6.1.7601.22176

29,184

29-Nov-2012

06:04

x64

Ncrypt.dll

6.1.7601.22153

307,200

05-Nov-2012

17:23

x64

Schannel.dll

6.1.7601.22153

341,504

05-Nov-2012

17:25

x64

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

File name

File version

File size

Date

Time

Platform

Cng.sys

6.1.7601.22099

789,032

28-Nov-2012

22:54

IA-64

Ksecdd.sys

6.1.7601.22176

179,560

29-Nov-2012

04:55

IA-64

Ksecpkg.sys

6.1.7601.22176

316,264

29-Nov-2012

04:55

IA-64

Lsasrv.dll

6.1.7601.22176

2,657,792

29-Nov-2012

04:50

IA-64

Lsasrv.mof

Not applicable

13,780

12-Nov-2010

23:52

Not applicable

Lsass.exe

6.1.7601.22176

56,320

29-Nov-2012

04:46

IA-64

Secur32.dll

6.1.7601.22176

48,640

29-Nov-2012

04:53

IA-64

Sspicli.dll

6.1.7601.22176

275,456

29-Nov-2012

04:53

IA-64

Sspisrv.dll

6.1.7601.22176

46,080

29-Nov-2012

04:53

IA-64

Ncrypt.dll

6.1.7601.22153

551,424

05-Nov-2012

15:24

IA-64

Schannel.dll

6.1.7601.22153

711,680

05-Nov-2012

15:26

IA-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 for Windows 7 and for Windows Server 2008 R2

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

File name

X86_microsoft-windows-lsa_31bf3856ad364e35_6.1.7601.22176_none_a89c923ed459f33d.manifest

File version

Not applicable

File size

101,124

Date (UTC)

29-Nov-2012

Time (UTC)

06:06

Platform

Not applicable

File name

X86_microsoft-windows-ncrypt-dll_31bf3856ad364e35_6.1.7601.22153_none_6042fc08691d45c3.manifest

File version

Not applicable

File size

2,737

Date (UTC)

05-Nov-2012

Time (UTC)

19:45

Platform

Not applicable

File name

X86_microsoft-windows-security-schannel_31bf3856ad364e35_6.1.7601.22153_none_247af184ccc40de1.manifest

File version

Not applicable

File size

12,919

Date (UTC)

05-Nov-2012

Time (UTC)

19:47

Platform

Not applicable

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

File name

Amd64_microsoft-windows-lsa_31bf3856ad364e35_6.1.7601.22176_none_04bb2dc28cb76473.manifest

File version

Not applicable

File size

101,128

Date (UTC)

29-Nov-2012

Time (UTC)

06:53

Platform

Not applicable

File name

Amd64_microsoft-windows-ncrypt-dll_31bf3856ad364e35_6.1.7601.22153_none_bc61978c217ab6f9.manifest

File version

Not applicable

File size

2,741

Date (UTC)

05-Nov-2012

Time (UTC)

20:59

Platform

Not applicable

File name

Amd64_microsoft-windows-security-schannel_31bf3856ad364e35_6.1.7601.22153_none_80998d0885217f17.manifest

File version

Not applicable

File size

12,921

Date (UTC)

05-Nov-2012

Time (UTC)

21:03

Platform

Not applicable

File name

Wow64_microsoft-windows-lsa_31bf3856ad364e35_6.1.7601.22176_none_0f0fd814c118266e.manifest

File version

Not applicable

File size

87,695

Date (UTC)

29-Nov-2012

Time (UTC)

05:53

Platform

Not applicable

File name

Wow64_microsoft-windows-security-schannel_31bf3856ad364e35_6.1.7601.22153_none_8aee375ab9824112.manifest

File version

Not applicable

File size

6,945

Date (UTC)

05-Nov-2012

Time (UTC)

19:35

Platform

Not applicable

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

File name

Ia64_microsoft-windows-lsa_31bf3856ad364e35_6.1.7601.22176_none_a89e3634d457fc39.manifest

File version

Not applicable

File size

101,126

Date (UTC)

29-Nov-2012

Time (UTC)

06:45

Platform

Not applicable

File name

Ia64_microsoft-windows-ncrypt-dll_31bf3856ad364e35_6.1.7601.22153_none_60449ffe691b4ebf.manifest

File version

Not applicable

File size

2,739

Date (UTC)

05-Nov-2012

Time (UTC)

17:39

Platform

Not applicable

File name

Ia64_microsoft-windows-security-schannel_31bf3856ad364e35_6.1.7601.22153_none_247c957accc216dd.manifest

File version

Not applicable

File size

12,920

Date (UTC)

05-Nov-2012

Time (UTC)

17:41

Platform

Not applicable

File name

Wow64_microsoft-windows-lsa_31bf3856ad364e35_6.1.7601.22176_none_0f0fd814c118266e.manifest

File version

Not applicable

File size

87,695

Date (UTC)

29-Nov-2012

Time (UTC)

05:53

Platform

Not applicable

File name

Wow64_microsoft-windows-security-schannel_31bf3856ad364e35_6.1.7601.22153_none_8aee375ab9824112.manifest

File version

Not applicable

File size

6,945

Date (UTC)

05-Nov-2012

Time (UTC)

19:35

Platform

Not applicable


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