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Getting "contactCard4Info request" error 0-0-18400-0-0 after logging into CWA RRS feed

  • Question

  • Hi,

    I have OCS2007 installed and running on W2K8.
    Communicator 2007 works fine for both dekstop sharing and chatting.

    I installed and configured CWA as outlined in the documentation.
    However, after logging in, users get a warning at the top of the CWA window:
     
    A server error occurred while sending the contactCard4Info request. Please try again.(Error code: 0-0-18400-0-0) Details...

    The details page returns the following:
    me Error Code Description Details (SID = 2)
    8/4/2009  12:01 PM 0-0-18400-0-0 A server error occurred while sending the contactCard4Info request. Please try again.
     <contactCard4Info rid="1" ucEnabled="false">
     </contactCard4Info>
    <error xmlns="http://schemas.microsoft.com/2006/09/rtc/cwa" code="18400" reason="" detail="Unable to cast object of type 'System.Security.Principal.GenericIdentity' to type 'System.Security.Principal.WindowsIdentity'."/>
    Chatting and dekstop sharing does not work, nor does adding new contacts.

    Does anyone know what my problem is?
    @ndyP
    Tuesday, August 4, 2009 5:08 PM