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Type your user name and password for connect for retrieving calendar data from outlook

    Question

  • Scenario:
    • User A logs in to communicator while on an external network. The laptop is domain joined and communicator does not prompt for a password to login - it uses the cached Windows profile credentials to login.
    • After Lync client successfully signs in, the user is shown a password prompt for "Communicator Services Sign In" - the reason given in the screen is to retrieve calendar data from Outlook
    • Outlook 2010 is not open at this stage
    • The default Outlook profile belongs to User A and the email address matches the sip login uri
    • If the prompts is cancelled, Outlook Integration Error results
    The environment:

    • Single forest AD with Server 2k8 functional level
    • Lync 2010 Ent with latest updates and the OS - Windows Server 2008
    • Exchange 2010 SP1 RU 3 on Windows Server 2008 / IIS 7
    • Latest Lync client with latest updates
    • Outlook 2010 SP1
    • Windows 7 ent

    In relation to Outlook integration with Communicator, I have done the following checks:

    • Outlook Autodiscover tests including SAN certificate checks
    • Outlook works using NTLM Authentication for Outlook Anywhere.
    • SIP Login is same as primary SMTP address (as per http://support.microsoft.com/default.aspx/kb/951644)
    • Autodiscover, EWS virtual directories have windows authentication as the Auth method

    I came across a post from Scott Oseychik regarding a similar issue (http://blogs.msdn.com/scottos/archive/2008/10/16/why-is-communicator-prompting-me-for-credentials.aspx)... i have done the changes still the issue is not resolved

    Any guidence will be helpful..

    Saturday, August 20, 2011 4:12 AM

Answers

  • I have done the following change on the CAS box, to get the issue fixed.

     

    Open the IISmanager
    expand the Default Wed site
    Select EWS and Autodicover and click on authentication
    Select Windows Authentication
    on the right hand pane select " providers"
    Move the "NTLM" to first
    Click ok
    Close IIS manager
    open command prompt
    type "iisreset /noforce"
    make sure IIS admin service and WWW services are started.

    This will fix the popup issue for retriving calendar data from outlook, while opening the OCS/Lync client

    • Marked as answer by Saamee Friday, December 16, 2011 3:16 PM
    Friday, December 16, 2011 3:16 PM

All replies

  • The following post has the similar issue with you and gives more answer, hoping it can help you:

    http://social.technet.microsoft.com/Forums/en-IE/ocsclients/thread/cfddcdf1-e165-444f-8b3a-37bdd506fa14


    Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.
    Monday, August 22, 2011 7:42 AM
  • I have done the following change on the CAS box, to get the issue fixed.

     

    Open the IISmanager
    expand the Default Wed site
    Select EWS and Autodicover and click on authentication
    Select Windows Authentication
    on the right hand pane select " providers"
    Move the "NTLM" to first
    Click ok
    Close IIS manager
    open command prompt
    type "iisreset /noforce"
    make sure IIS admin service and WWW services are started.

    This will fix the popup issue for retriving calendar data from outlook, while opening the OCS/Lync client

    • Marked as answer by Saamee Friday, December 16, 2011 3:16 PM
    Friday, December 16, 2011 3:16 PM