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FreeBusy Unavailable for Some Users Exchange Outlook 2007

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  • FreeBusy Unavailable for Some Users Exchange Outlook 2007

    I started receiving complaints last week from some users in one of my AD sites (site 2) that the free/busy information is sometimes or always unavailable. I've read a ton of posts and technet articles about this but nothing seems to match my specific environment. Either that or I'm just overlooking something.



    Outlook logging isn't revealing any errors nor is the Test E-mail AutoConfiguration utility.

    Can somebody please help me?

    My Exchange environment is as follows:

    Site 1) CCR cluster on Win2k3
    2 Win2k3 servers with both CAS and Hub roles installed (cas1 and cas2)
    - behind a hardware load balancer/SSL accelerator hosting wildcard cert (*.company1.com) issued from public CA
    DC/DNS server for company1.local - we are in a domain tree of a forest company2.com
    users (with no complaints)

    Site 2)) DC/DNS server for company1.local - we are in a domain tree of a forest (company2.com)
    users (with free/busy problems)

    Exchange Settings on both CAS servers:
    Autodiscover URL is https://mail.company1.com/autodiscover/autodiscover.xml

    Get-WebServicesVirtualDirectory -Server CAS1 | fl
    InternalNLBBypassUrl : https://mail.company1.com/ews/exchange.asmx
    Name : EWS (Default Web Site)
    InternalAuthenticationMethods : {Ntlm, WindowsIntegrated}
    ExternalAuthenticationMethods : {Ntlm, WindowsIntegrated}
    BasicAuthentication : False
    DigestAuthentication : False
    WindowsAuthentication : True
    Server : CAS1
    InternalUrl : https://mail.company1.com/ews/exchange.asmx
    ExternalUrl : https://mail.company1.com/ews/exchange.asmx

    Get-AutodiscoveryVirtualDirectory -Server CAS1 | fl
    Name : Autodiscover (Default Web Site)
    InternalAuthenticationMethods : {Basic, Ntlm, WindowsIntegrated}
    ExternalAuthenticationMethods : {Basic, Ntlm, WindowsIntegrated}
    BasicAuthentication : True
    DigestAuthentication : False
    WindowsAuthentication : True
    Server : CAS1
    InternalUrl :
    ExternalUrl :


    Here is the output of "Test-OutlookWebServices -id alias | fl" on CAS1
    Id : 1003
    Type : Information
    Message : About to test AutoDiscover with the e-mail address alias@company1.com.

    Id : 1006
    Type : Information
    Message : The Autodiscover service was contacted at https://mail.company1.com/autodiscover/autodiscover.xml.

    WARNING: An unexpected error has occurred and debug information is being generated: Object reference not set to an
    instance of an object.
    Test-OutlookWebServices : Object reference not set to an instance of an object.
    At line:1 char:24
    + Test-OutlookWebServices <<<< -id alias | fl


    Here is the output of "Test-OutlookWebServices -id alias | fl" on CAS2
    Id : 1003
    Type : Information
    Message : About to test AutoDiscover with the e-mail address alias@company1.com.

    Id : 1013
    Type : Error
    Message : When contacting https://mail.company1.com/autodiscover/autodiscover.xml received the error The remote server returned an error: (401) Unauthorized.

    Id : 1006
    Type : Error
    Message : The Autodiscover service could not be contacted.
    Last edited by polycarp; 10th July 2009, 19:06. Reason: changed font to bold

  • #2
    Re: FreeBusy Unavailable for Some Users Exchange Outlook 2007

    All replies are appreciated.

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