Symptoms

Consider the following scenario:

  • You install Internet Information Service (IIS) on a computer that is running Windows 7 or Windows Server 2008 R2 in a domain.

  • You disable Anonymous Authentication and enable Windows Authentication for a hosted website.

  • You use the DefaultAppPool application pool or another application pool that uses ApplicationPoolIdentity as the identity for the hosted website.

  • You restart the IIS service after the computer password is changed.

In this scenario, users cannot access the website. They are incorrectly prompted for credentials. However, they cannot access the website if they enter correct credentials.

Note By default, the computer password is automatically changed every 30 days. You can also manually change the computer password by using the Nltest.exe utility.

Cause

This issue occurs because a flag is set in a global credential incorrectly after the computer password is changed. Therefore, authentication fails after the IIS service is restarted.

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 this specific problem.

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, submit a request to 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=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 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


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.

    Version

    Product

    SR_Level

    Service branch

    6.1.760
    0.
    16xxx

    Windows 7 and Windows Server 2008 R2

    RTM

    GDR

    6.1.760
    0.
    20xxx

    Windows 7 and Windows Server 2008 R2

    RTM

    LDR

    6.1.760
    1.
    17xxx

    Windows 7 and Windows Server 2008 R2

    SP1

    GDR

    6.1.760
    1.
    21xxx

    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 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

File name

File version

File size

Date

Time

Platform

Cng.sys

6.1.7600.16385

369,568

14-Jul-2009

01:17

x86

Ksecdd.sys

6.1.7600.20967

67,456

14-May-2011

06:35

x86

Ksecpkg.sys

6.1.7600.20967

133,504

14-May-2011

06:35

x86

Lsasrv.dll

6.1.7600.20967

1,037,824

14-May-2011

06:32

x86

Lsasrv.mof

Not applicable

13,780

10-Jun-2009

21:33

Not applicable

Lsass.exe

6.1.7600.16385

22,528

14-Jul-2009

01:14

x86

Secur32.dll

6.1.7600.20967

22,016

14-May-2011

06:32

x86

Sspicli.dll

6.1.7600.20967

100,352

14-May-2011

06:32

x86

Sspisrv.dll

6.1.7600.20967

15,360

14-May-2011

06:32

x86

Cng.sys

6.1.7600.16385

369,568

14-Jul-2009

01:17

x86

Ksecdd.sys

6.1.7601.17514

67,456

20-Nov-2010

12:30

x86

Ksecpkg.sys

6.1.7601.21728

133,504

14-May-2011

07:48

x86

Lsasrv.dll

6.1.7601.21728

1,038,848

14-May-2011

07:41

x86

Lsasrv.mof

Not applicable

13,780

10-Jun-2009

21:33

Not applicable

Lsass.exe

6.1.7601.21728

22,528

14-May-2011

07:36

x86

Secur32.dll

6.1.7601.17514

22,016

20-Nov-2010

12:21

x86

Sspicli.dll

6.1.7601.17514

100,352

20-Nov-2010

12:21

x86

Sspisrv.dll

6.1.7601.17514

15,872

20-Nov-2010

12:21

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

6.1.7600.16385

460,504

14-Jul-2009

01:43

x64

Ksecdd.sys

6.1.7600.20967

95,616

14-May-2011

07:43

x64

Ksecpkg.sys

6.1.7600.20967

152,960

14-May-2011

07:43

x64

Lsasrv.dll

6.1.7600.20967

1,446,400

14-May-2011

07:35

x64

Lsasrv.mof

Not applicable

13,780

10-Jun-2009

20:52

Not applicable

Lsass.exe

6.1.7600.16385

31,232

14-Jul-2009

01:39

x64

Secur32.dll

6.1.7600.20967

28,160

14-May-2011

07:37

x64

Sspicli.dll

6.1.7600.20967

136,192

14-May-2011

07:39

x64

Sspisrv.dll

6.1.7600.20967

28,672

14-May-2011

07:39

x64

Cng.sys

6.1.7601.17514

459,248

20-Nov-2010

13:28

x64

Ksecdd.sys

6.1.7601.17514

95,616

20-Nov-2010

13:33

x64

Ksecpkg.sys

6.1.7601.21728

152,960

14-May-2011

07:10

x64

Lsasrv.dll

6.1.7601.21728

1,446,912

14-May-2011

07:11

x64

Lsasrv.mof

Not applicable

13,780

10-Jun-2009

20:52

Not applicable

Lsass.exe

6.1.7601.21728

31,232

14-May-2011

07:10

x64

Secur32.dll

6.1.7601.17514

28,160

20-Nov-2010

13:27

x64

Sspicli.dll

6.1.7601.17514

136,192

20-Nov-2010

13:27

x64

Sspisrv.dll

6.1.7601.17514

29,184

20-Nov-2010

13:27

x64

Lsasrv.mof

Not applicable

13,780

22-Jul-2009

23:19

Not applicable

Secur32.dll

6.1.7600.20967

22,016

14-May-2011

06:32

x86

Sspicli.dll

6.1.7600.20967

96,768

14-May-2011

06:30

x86

Lsasrv.mof

Not applicable

13,780

12-Nov-2010

23:53

Not applicable

Secur32.dll

6.1.7601.21728

22,016

14-May-2011

07:43

x86

Sspicli.dll

6.1.7601.21728

96,768

14-May-2011

07:33

x86

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

File name

File version

File size

Date

Time

Platform

Cng.sys

6.1.7600.16385

787,736

14-Jul-2009

01:52

IA-64

Ksecdd.sys

6.1.7600.20967

179,584

14-May-2011

06:23

IA-64

Ksecpkg.sys

6.1.7600.20967

307,072

14-May-2011

06:23

IA-64

Lsasrv.dll

6.1.7600.20967

2,654,720

14-May-2011

06:19

IA-64

Lsasrv.mof

Not applicable

13,780

10-Jun-2009

20:57

Not applicable

Lsass.exe

6.1.7600.16385

56,320

14-Jul-2009

01:44

IA-64

Secur32.dll

6.1.7600.20967

48,640

14-May-2011

06:19

IA-64

Sspicli.dll

6.1.7600.20967

275,456

14-May-2011

06:19

IA-64

Sspisrv.dll

6.1.7600.20967

45,568

14-May-2011

06:19

IA-64

Cng.sys

6.1.7600.16385

787,736

14-Jul-2009

01:52

IA-64

Ksecdd.sys

6.1.7601.17514

179,584

20-Nov-2010

10:33

IA-64

Ksecpkg.sys

6.1.7601.21728

307,072

14-May-2011

06:16

IA-64

Lsasrv.dll

6.1.7601.21728

2,655,744

14-May-2011

06:14

IA-64

Lsasrv.mof

Not applicable

13,780

10-Jun-2009

20:57

Not applicable

Lsass.exe

6.1.7600.16385

56,320

14-Jul-2009

01:44

IA-64

Secur32.dll

6.1.7601.17514

48,640

20-Nov-2010

10:28

IA-64

Sspicli.dll

6.1.7601.17514

275,456

20-Nov-2010

10:28

IA-64

Sspisrv.dll

6.1.7601.17514

46,080

20-Nov-2010

10:28

IA-64

Lsasrv.mof

Not applicable

13,780

22-Jul-2009

23:19

Not applicable

Secur32.dll

6.1.7600.20967

22,016

14-May-2011

06:32

x86

Sspicli.dll

6.1.7600.20967

96,768

14-May-2011

06:30

x86

Lsasrv.mof

Not applicable

13,780

12-Nov-2010

23:53

Not applicable

Secur32.dll

6.1.7601.21728

22,016

14-May-2011

07:43

x86

Sspicli.dll

6.1.7601.21728

96,768

14-May-2011

07:33

x86

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

How to use commands in Command Prompt to determine when the computer last set the password

The "Symptoms" section notes that this issue occurs when the computer account password changes.

  1. Type the following command to determine a distinguished name (DN) for a computer, and the web server that cannot be accessed by clients in this case:
    dsquery computer -name computername

  2. Install Active Directory tools on the computer, and then type the following command to determine a pwdLastSet attribute:
    repadmin /showobjmeta directoryservername* "distinguishedname"

  3. Examine the pwdLastSet attribute in the output of the repadmin command to identify when the account password of the computer together with the specified DN path was last changed.

How to use commands in Command Prompt to reproduce this issue

  1. Type the following command to change the computer password:
    nltest /sc_change_pwd:password

  2. Type IISReset to restart the IIS service.

  3. Access the hosted website.

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

File name

Update.mum

File version

Not applicable

File size

2,773

Date (UTC)

14-May-2011

Time (UTC)

11:23

Platform

Not applicable

File name

X86_16e928c7a6939d7e391771b9804a8afd_31bf3856ad364e35_6.1.7600.20967_none_8e8734533763fa37.manifest

File version

Not applicable

File size

691

Date (UTC)

14-May-2011

Time (UTC)

11:23

Platform

Not applicable

File name

X86_c996bbc931d781f98d93ca9585b5ba13_31bf3856ad364e35_6.1.7601.21728_none_747d0375e5b30e17.manifest

File version

Not applicable

File size

691

Date (UTC)

14-May-2011

Time (UTC)

11:23

Platform

Not applicable

File name

X86_microsoft-windows-lsa_31bf3856ad364e35_6.1.7600.20967_none_a6c2279ad72a5a00.manifest

File version

Not applicable

File size

103,660

Date (UTC)

14-May-2011

Time (UTC)

11:26

Platform

Not applicable

File name

X86_microsoft-windows-lsa_31bf3856ad364e35_6.1.7601.21728_none_a8d4c49ad42f6f7f.manifest

File version

Not applicable

File size

103,660

Date (UTC)

14-May-2011

Time (UTC)

11:26

Platform

Not applicable

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

File name

Amd64_088d4f313cfbf8d71c4d81879b0e298f_31bf3856ad364e35_6.1.7600.20967_none_c0f53d180ffe614d.manifest

File version

Not applicable

File size

1,032

Date (UTC)

14-May-2011

Time (UTC)

11:23

Platform

Not applicable

File name

Amd64_33bdaad521283f1c7a5f3e99582333db_31bf3856ad364e35_6.1.7600.20967_none_838ccd9d9b04d70b.manifest

File version

Not applicable

File size

695

Date (UTC)

14-May-2011

Time (UTC)

11:23

Platform

Not applicable

File name

Amd64_4148a545c3eb6fd2e840ed70d6d531de_31bf3856ad364e35_6.1.7601.21728_none_67f8a795418f4fac.manifest

File version

Not applicable

File size

1,032

Date (UTC)

14-May-2011

Time (UTC)

11:23

Platform

Not applicable

File name

Amd64_ed340d0b9110eecc28df7502988b096c_31bf3856ad364e35_6.1.7601.21728_none_5a65eb22dec06c7e.manifest

File version

Not applicable

File size

695

Date (UTC)

14-May-2011

Time (UTC)

11:23

Platform

Not applicable

File name

Amd64_microsoft-windows-lsa_31bf3856ad364e35_6.1.7600.20967_none_02e0c31e8f87cb36.manifest

File version

Not applicable

File size

103,664

Date (UTC)

14-May-2011

Time (UTC)

11:29

Platform

Not applicable

File name

Amd64_microsoft-windows-lsa_31bf3856ad364e35_6.1.7601.21728_none_04f3601e8c8ce0b5.manifest

File version

Not applicable

File size

103,664

Date (UTC)

14-May-2011

Time (UTC)

11:29

Platform

Not applicable

File name

Update.mum

File version

Not applicable

File size

3,215

Date (UTC)

14-May-2011

Time (UTC)

11:23

Platform

Not applicable

File name

Wow64_microsoft-windows-lsa_31bf3856ad364e35_6.1.7600.20967_none_0d356d70c3e88d31.manifest

File version

Not applicable

File size

86,382

Date (UTC)

14-May-2011

Time (UTC)

06:49

Platform

Not applicable

File name

Wow64_microsoft-windows-lsa_31bf3856ad364e35_6.1.7601.21728_none_0f480a70c0eda2b0.manifest

File version

Not applicable

File size

86,382

Date (UTC)

14-May-2011

Time (UTC)

08:03

Platform

Not applicable

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

File name

Ia64_7615fe1a79926cdc61a9ac746cf8cbba_31bf3856ad364e35_6.1.7601.21728_none_684e1e76c0ef1030.manifest

File version

Not applicable

File size

1,030

Date (UTC)

14-May-2011

Time (UTC)

11:23

Platform

Not applicable

File name

Ia64_ce05a992b29bad9158f439fe48541f2f_31bf3856ad364e35_6.1.7600.20967_none_c4c389c6736efc47.manifest

File version

Not applicable

File size

1,030

Date (UTC)

14-May-2011

Time (UTC)

11:23

Platform

Not applicable

File name

Ia64_microsoft-windows-lsa_31bf3856ad364e35_6.1.7600.20967_none_a6c3cb90d72862fc.manifest

File version

Not applicable

File size

103,662

Date (UTC)

14-May-2011

Time (UTC)

11:23

Platform

Not applicable

File name

Ia64_microsoft-windows-lsa_31bf3856ad364e35_6.1.7601.21728_none_a8d66890d42d787b.manifest

File version

Not applicable

File size

103,662

Date (UTC)

14-May-2011

Time (UTC)

11:23

Platform

Not applicable

File name

Update.mum

File version

Not applicable

File size

2,168

Date (UTC)

14-May-2011

Time (UTC)

11:23

Platform

Not applicable

File name

Wow64_microsoft-windows-lsa_31bf3856ad364e35_6.1.7600.20967_none_0d356d70c3e88d31.manifest

File version

Not applicable

File size

86,382

Date (UTC)

14-May-2011

Time (UTC)

06:49

Platform

Not applicable

File name

Wow64_microsoft-windows-lsa_31bf3856ad364e35_6.1.7601.21728_none_0f480a70c0eda2b0.manifest

File version

Not applicable

File size

86,382

Date (UTC)

14-May-2011

Time (UTC)

08:03

Platform

Not applicable

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