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OWA Issue - Help me for the sake of my sanity!

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  • OWA Issue - Help me for the sake of my sanity!

    Hi Guys

    I'm pulling out my hair with this one. Have tried pretty much everything I know so could use some advice!

    Ok so here goes, the spec:

    MS Windows 2003 Enterprise (Fully Patched)
    MS Exchange 2003 Enterprise (SP2)

    OWA Issue is this:
    From outside the network, go to the mail domain, no problems, it asks for user credentials (standard windows typed login box as opposed to the OWA Welcome page for some reason) I log in to the mail account using [email protected]in and password and it appears to go through fine. It will bring up both the OWA panes with no information in then ask for the same credentials again, as they are still already in the box I hit "OK" but it comes back immediately again! If I do this 3 times it says:

    "LSA cannot be contacted"

    However, get this, if I wait for about 1 minute then hit "OK" it logs me in! Then I can browse the inbox UNLESS I have an email that has a remote image or URL in it, then it will do exactly the same thing. If i switch to another folder within the mailbox it will ask for the credentials again....This happens to every single mail account.

    So far, I have done the following:

    Checked events for anything significant
    Checked patch levels
    Rebuilt the DC and Exchange again from scratch leaving ONLY the user mailboxes intact
    Combined the DC and Exchange server into one to see if that makes a difference
    Ran Exchange Best Practice Analyser against the server

    The weird thing is this; OWA on the internal network works perfectly! The problem only happens when accessing from outside the network! Even my Windows Mobile devices work fine syncing with the server from outside the network.

    Anyone have any ideas whatsoever?? I am so lost with this one.

    Thanks

  • #2
    Re: OWA Issue - Help me for the sake of my sanity!

    standard windows typed login box as opposed to the OWA Welcome page for some reason
    Here is some instructions on how to configure Forms Based Authentication:

    http://www.petri.com/configuring_for...hange_2003.htm

    I have to admit when I used OWA (without Forms based authentication) I received similar problems to yourself. Sometimes it would log me in, sometimes not. Since I was planning on moving to forms based authentication I thought I would implement it and see if I still experienced the problems. I have not had any problems since moving.

    I know this is probably not the answer your looking for but if your not using Forms based authentication chances are your traffic is not encrypted. Might be worth looking into it. If your OWA traffic in encyrpted then it's a simple change to use forms based authentication.

    Hope this helps

    Michael
    Michael Armstrong
    www.m80arm.co.uk
    MCITP: EA, MCTS, MCSE 2003, MCSA 2003: Messaging, CCA, VCP 3.5, 4, 5, VCAP5-DCD, VCAP5-DCA, ITIL, MCP, PGP Certified Technician

    ** Remember to give credit where credit is due and leave reputation points sigpic where appropriate **

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    • #3
      Re: OWA Issue - Help me for the sake of my sanity!

      Thanks very much for the reply.

      Seems I may have made a classic "school boy error" of not rulling out all the factors in this!

      I tried it from an internet cafe - guess what - it works!! But the place I was testing from has a "weird" firewall setup which was causing this.

      Apologies and thanks for your help

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      • #4
        Re: OWA Issue - Help me for the sake of my sanity!

        Glad you got it sotred mate.
        Michael Armstrong
        www.m80arm.co.uk
        MCITP: EA, MCTS, MCSE 2003, MCSA 2003: Messaging, CCA, VCP 3.5, 4, 5, VCAP5-DCD, VCAP5-DCA, ITIL, MCP, PGP Certified Technician

        ** Remember to give credit where credit is due and leave reputation points sigpic where appropriate **

        Comment

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