The Lync 2010 client or the Office Communicator client does not download the corporate address book and displays a notification: "Cannot Synchronize Address Book"

Article ID: 939530 – Last Review: September 10, 2011 – Revision: 4.0

Consider the following scenarios:
  • You use the Microsoft Lync 2010 client to log on to the Microsoft Lync Server 2010.
  • You use the Microsoft Office Communicator client to log on to the Communications server.

In these scenarios, the corporate address book does not download, and no results are displayed when you search contacts by name.

Also, you receive the following notification in the Lync 2010 client or in the Communicator client:

Cannot Synchronize Address Book

When you click the notification to display the details, you receive the following error message:

Communicator 2007

Cannot synchronize with the corporate address book because the file could not be found. Please contact your system administrator with this information.

Lync 2010 or Communicator 2007 R2

Cannot synchronize with the corporate address book. This may be because the proxy server setting in your web browser does not allow access to the address book. If the problem continues please contact your…

If you run the Validation Wizard on the Communications Server 2007 R2 or Communications Server 2007 front-end server, you receive the following error message in the log:

Failure 0xC3FC200D One or more errors were detected

In the Validation Wizard log, expand Diagnose WebComponents, expand Check Connectivity, and then expand Checking Address Book Serverconfiguration. The URL of the location to download the address book is displayed in the Check Http URL field together with the following error message:

Internal Error: ConnectFailure

Note: Lync Server 2010 does not have a validation wizard.

This issue occurs if the website that hosts the address book does not have a valid Secure Sockets Layer (SSL) certificate installed.
To resolve this issue on a computer that is running Windows Server 2003, make sure that the website that is hosting the address book has a valid SSL certificate installed. To do this, follow these steps:
  1. On the computer that is running Internet Information
    Services (IIS), click Start, click Run, type
    inetmgr.msc, and then click
    OK.
  2. Expand ComputerName
    (local computer)
    , expand Web Sites, right-click the website that hosts the address book, and then click Properties.
  3. Click the Directory Security
    tab.
  4. In the Secure communications section,
    determine whether View Certificate is enabled.

    Note If View Certificate is enabled, click
    View Certificate. Then, you can determine whether the
    certificate is valid.

    • If the certificate is invalid, follow these steps:

      1. Click Server Certificate in the
        WebSiteName Properties dialog
        box.
      2. Click Next, and then click Renew
        the current certificate
        . Or, click Replace the current
        certificate
        .
      3. Follow the steps to finish the IIS
        Certificate Wizard.

        Note The IIS Certificate Wizard will help you renew your certificate or replace your certificate with a valid certificate.

        For more information about how to request a
        certificate and install the certificate in IIS, click the following article
        number to view the article in the Microsoft Knowledge Base:

        299875 

        (http://support.microsoft.com/kb/299875/
        )

        How to implement SSL in IIS

    • If View Certificate is disabled, no certificate is installed on this computer. You have to install a certificate to this website. To do this, follow these steps:
      1. Click Server Certificate in the
        WebSiteName Properties dialog
        box.
      2. Click Next, and then click Create a new certificate.
      3. Follow the steps to finish the IIS Certificate Wizard.

        Note The IIS Certificate Wizard will help you install a certificate to this website.

        For more information about how to request a
        certificate and to install the certificate in IIS, click the following article
        number to view the article in the Microsoft Knowledge Base:

        299875 

        (http://support.microsoft.com/kb/299875/
        )

        How
        to implement SSL in IIS

To resolve this issue on a computer that is running Windows Server 2008, make sure that the website that is hosting the address book has a valid SSL certificate installed. To do this, follow these steps:

  1. 1. On the computer that is running Internet Information Services (IIS 7.0), click Start, click Run, type inetmgr.msc, and then click OK.
  2. Expand ComputerName
    (local computer)
    , expand Web Sites, click the website that hosts the address book, and then click Bindings in the Actions pane.
  3. Select the HTTPS site binding that includes the port that the Address book Service is listening on, and then click Edit.
  4. Click View to open the certificate dialog box, and then view the expiration date of the certificate on the General tab.

    Note The IIS Server Certificate feature helps you renew your certificate or replace your certificate with a valid certificate.

    • If the certificate is invalid, follow these steps:

      1. In the Connections pane, select the name of the IIS 7.0 server that hosts the Address Book service, select the Features view, and then click Server Certificates.
      2. In the Actions pane, select Open Feature.
      3. In the Features view, select the certificate that you viewed in step 4, and then use the Actions pane to renew the certificate.
    • If the needed certificate is not installed on this computer, use the certificate wizards in the Actions pane to do one of the following: Import, Create a Certificate Request, Complete a Certificate Request, or Create a Domain Certificate.
    • For more information about how to renew, create, and complete certificate requests on IIS 7.0, visit the following Microsoft website: http://technet.microsoft.com/en-us/library/cc732230(WS.10).aspx
      (http://technet.microsoft.com/en-us/library/cc732230(WS.10).aspx)


APPLIES TO
  • Microsoft Office Communications Server 2007 Enterprise Edition
  • Microsoft Office Communications Server 2007 Standard Edition
  • Microsoft Office Communications Server 2007 R2 Enterprise Edition
  • Microsoft Office Communications Server 2007 R2 Standard Edition
  • Microsoft Office Communicator 2007
  • Microsoft Lync 2010
  • Microsoft Lync Server 2010 Enterprise Edition
  • Microsoft Lync Server 2010 Standard Edition
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The Lync 2010 client or the Office Communicator client does not download the corporate address book and displays a notification: "Cannot Synchronize Address Book"

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