Exchange 2007 OWA authentication failure

Posted on 2011-05-09
Last Modified: 2012-08-14
Hi Experts,

I need some urgent help. I have been trying to get owa to work all day with no luck.

I upgraded the exchange 2007 server to SP3 this morning and since then OWA does not work. Ihave done everything i found on the net on ways to fix it. Things like remove OWA vir dir and create a new one. Check all permissions, make sure FBA is enabled make sure the correct internal and external URL's are there.

The system is on SBS 2008 and is a single sever with all roles installed. The system worked fine until i upgraded to SP3.

If i browse to my url, it used to redirect me to, its a config thing i did. This doesnt work now.

If i go to i get a blank page.

If i try test-owaconnectivity with a current user i get authentication failed.

I have a 3rd party cert with 5 sub alt names and is installed and working correctly.

HELP please.
Question by:grahamwm

    Author Comment

    An update for you:
    VERBOSE: Test-OwaConnectivity : The Test-OwaConnectivity cmdlet is adding the
    test instance for URL '' specified with
    the -URL argument.
    VERBOSE: Test-OwaConnectivity : Starting test. Target URL =
    VERBOSE: Test-OwaConnectivity : The TrustAnySSLCertificate flag was specified.
    Therefore, any certificate will be trusted.
    VERBOSE: Test-OwaConnectivity : The Test-OwaConnectivity cmdlet is sending an
    HTTP GET logon request without credentials for authentication type
    WARNING: The server did not return authentication headers to an HTTP GET
    without any credentials. This virtual directory may not have any authentication
     methods enabled.
    LVL 9

    Expert Comment


    Author Comment

    Some of it makes sense but i have tried all of that, i also dont have a default website. All owa and other exchange items are under SBS Web Applications website. I just tried to remove the owa vir dir again and am now not able to create a new one. This is geting worse.

    Author Comment

    right, i re-created the default web site. I tried to create a new owa vir dir in the default web site and it created. Wont create in teh SBS web applications website.

    This is a very big problem. SP3 has royally screwed my server up.

    Author Comment

    i've now resorted to uninstalling the CAS role.

    Accepted Solution

    i have moved on, created a new cas server and installed what i needed there. SBS 2008 sucks!!! This question can be closed.

    Author Closing Comment

    did not get any good responses as to why OWA on SBS 2008 failed, created a new CAS server and took away the role from SBS so therefore solved my own problem

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