Outlook 2007 and Windows XP prompted for invalid SSL Cert and Prompt for password

Posted on 2012-08-29
Last Modified: 2012-09-09
We are running Exchange 2010, with two CAS servers running WNLB

Getting a warning for invalid SSL certificate, if they click Yes it lets them pass..

They are being prompted for credentials as well. This happens ONLY on Windows XP machines with Office 2007 or one machine that is XP with Office 2010.

Windows 7 / Office 10 machines are completely fine. is what our autodiscover relays, and the SSL Cert on there is valid until a month from now. We are going to get a new cert, but would this be the problem?
Question by:AllIntUni2000
    LVL 7

    Expert Comment

    would be interesting to see what the cert issue actually is and yes this can cause problems

    Is office 2007 in cache mode? or online mode?

    There is also a registry key I have used before.  Will check when I get to work, but have a feeling it is from this:

    and it's DisableTransientFailureAuthPrompts but will confirm in the morning
    LVL 33

    Expert Comment

    There are some good troubleshooting steps mentioned here for WinXP, I could have copy pasted them - but that doesn't make sense.

    Let me know if it doesn't help you.


    Accepted Solution

    It looks like there is a typo in our CAS wnlb

    it says and should be

    I believe that is where the error is. I am going to make the change tonight after hours and see.. I will update tomorrow.

    I believe Exchange_Geek is correct

    Author Closing Comment

    I found my own issue

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