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Exchange 2010 OWA authentication issues?


 

If you are not reading the step-by-step installation guide (any of them) and relying on Exchange 2010’s “pre-requisites” check, you may have an issue with OWA when done.

 

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Basically when the setup program is checking the Pre-requisites for CAS, it doesn’t check to ensure you have the correct authentication protocols installed.

 

This can be remedied by adding them as follows;

 

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I also enabled the Windows Authentication, just for good measure.

 

Post-install no need to force an IIS restart (I think it does it as part of the install TBH), just refresh your OWA logon page and login as you want 🙂

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  1. February 10, 2010 at 10:56 pm

    AWESOME! You’re a lifesaver. This was exactly my problem. Enabled basic and digest only and was able to log in w/out a problem. Thanks so much!

  2. February 11, 2010 at 12:44 pm

    No problem 🙂

  3. Syed
    March 22, 2010 at 6:47 am

    Hurray…. done i had spent lots of time in finding out where could be the problem. but really you saved my time and mental energy. thanks a lot buddy.

  4. chuck
    May 26, 2010 at 10:08 pm

    You’re a bad ass. You just made my day.

  5. Btn
    June 22, 2010 at 9:23 pm

    Really Great. Saved my day!

  6. Dennis
    November 3, 2010 at 3:14 pm

    THANKS!!!!!!!!!!! I was searching for hours…………………………….

  7. one2give
    November 19, 2010 at 10:15 pm

    Thanks for that info, Now to just undo what i have been doing to troubleshoot

  8. Uvaldo
    April 28, 2011 at 8:30 am

    When I try to log on to owa I receive windows security logon.Not the out look web access web app page. I need to remove this. please help

    • April 28, 2011 at 8:45 am

      As a guess you have Integrated authentication enabled, not forms based. Does your environment contain a reverse proxy (i.e. ISA/TMG) – this is typically the reason for it being configured so.

      If it doesn’t you can change this either from the EMS or EMC;

      http://technet.microsoft.com/en-us/library/aa998867.aspx

      Should help, but in short;

      get-owavirtualdirectory | Set-owavirtualdirectory -FormsAuthentication:$true

      should do the trick 🙂

      • Uvaldo
        April 28, 2011 at 5:02 pm

        when first installed Outlook web app was showing by default now it is asking even when client use outlook they get the windows security login before they can do anything.

      • April 29, 2011 at 10:03 am

        Sounds like your CAS role is poorly;

        First thing I would try is resetting the iis virtual directories;

        http://technet.microsoft.com/en-us/library/ff629372.aspx

        The above link will talk you through for 2010, and I would use the EMC as it’s simpler in this case.

        Hope that helps 🙂

  9. Chris Harris
    August 23, 2011 at 10:56 pm

    where do I set those role services? do I have to reinstall iis???

    • Chris Harris
      August 23, 2011 at 11:00 pm

      nm, found it, thanks!

      • August 24, 2011 at 12:25 pm

        Caught me on holiday so apologies for the late reply 🙂

        Glad you found it though 😛

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