Symptoms

When you sign in to a Microsoft Lync 2010 client by using the Microsoft Lync Online service, you are automatically signed out after a while. Additionally, you receive the following error message:

Cannot sign in to Lync

The user name, password or domain appears to be incorrect. Ensure that you entered them correctly. If the problem continues, please contact your support team.

Cause

This issue occurs because Lync 2010 incorrectly handles the web ticket that is issued by the Lync Server 2010 front-end server.

Resolution

Update package information

Microsoft Download Center

The following files are available for download from the Microsoft Download Center:


Download Download the Lync.msp x86 package now.

Download Download the Lync.msp X64 package now.

For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:

119591 How to obtain Microsoft support files from online servicesMicrosoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.

Prerequisites

There are no prerequisites for installing this update package.

Restart requirement

You have to restart the computer if certain dependencies in Lync 2010 are still running when the update is applied. For example, if you have Microsoft Office Outlook or Lync 2010 running when the update is applied, you have to restart the computer.

Registry information

You do not have to make any changes in the registry to apply this update.

File information

This update may not contain all the files that you must have to fully update a product to the latest build. This update contains only the files that you must have to correct the issues that are listed in this article.

After the update is installed, the global version of this update has the file attributes, or a later version of the file attributes, that are listed in the following table:

For Lync 2010 x86-edtion:

File name

File version

File size

Date

Time

Platform

Appshapi.dll

4.0.7577.253

1,135,368

30-Mar-2011

17:43

x86

Appshcom.dll

4.0.7577.253

281,352

30-Mar-2011

17:43

x86

Appshvw.dll

4.0.7577.253

1,896,200

30-Mar-2011

17:44

x86

Communicator.exe

4.0.7577.256

12,021,520

06-Apr-2011

15:21

x86

Crecplayerres.exe

4.0.7577.253

604,432

30-Mar-2011

17:45

x86

ures.dll

4.0.7577.253

234,248

30-Mar-2011

17:45

x86

caddin.dll

4.0.7577.253

900,872

30-Mar-2011

17:45

x86

Ogl.dll

4.0.7577.253

1,705,728

30-Mar-2011

17:44

x86

Rtmpltfm.dll

4.0.7577.253

6,416,136

30-Mar-2011

17:44

x86

Saext.dll

4.0.7577.253

319,752

30-Mar-2011

17:43

x86

Sqmapi.dll

6.0.6000.16386

141,064

09-Feb-2011

20:28

x86

Uccp.dll

4.0.7577.256

5,939,976

06-Apr-2011

15:31

x86

Ucd.ll

4.0.7577.256

13,271,808

06-Apr-2011

15:36

x86

For Lync 2010 x64-edition:

File name

File version

File size

Date

Time

Platform

Appshapi.dll

4.0.7577.253

1,135,368

30-Mar-2011

17:43

x86

Appshcom.dll

4.0.7577.253

281,352

30-Mar-2011

17:43

x86

Appshvw.dll

4.0.7577.253

1,896,200

30-Mar-2011

17:44

x86

Communicator.exe

4.0.7577.256

12,021,520

06-Apr-2011

15:21

x86

Crecplayerres.exe

4.0.7577.253

604,432

30-Mar-2011

17:45

x86

ures.dll

4.0.7577.253

234,248

30-Mar-2011

17:45

x86

caddin.dll

4.0.7577.253

900,872

30-Mar-2011

17:45

x86

caddin.dll

4.0.7577.253

1,497,352

30-Mar-2011

19:31

x64

Ogl.dll

4.0.7577.253

1,705,728

30-Mar-2011

17:44

x86

Rtmpltfm.dll

4.0.7577.253

6,416,136

30-Mar-2011

17:44

x86

Saext.dll

4.0.7577.253

319,752

30-Mar-2011

17:43

x86

Sqmapi.dll

6.0.6000.16386

141,064

09-Feb-2011

20:28

x86

Uccp.dll

4.0.7577.256

5,939,976

06-Apr-2011

15:31

x86

Uc.dll

4.0.7577.256

13,271,808

06-Apr-2011

15:36

x86

Workaround

To work around this issue, exit and then restart the Lync 2010 client.

More Information

For more information about the Web Ticket Service, visit the following Microsoft websites:

Web Ticket Service Server Details

Web Ticket Service

References

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

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