Mino – The UC Guy

Microsoft Unified Communications Blog

11 Responses to “Communcator Web Access R2 (error 0-1-492)”

  1. richard said

    Additionally, you may also run into troubles if external client wants to access a CWA website, that was created as “internal” type (I noticed different authentication settings in IIS for the website) instead of the “external” type.

  2. Mino said

    totally agree , if you chose the Forum based authontication only …then this problem will not be there.

    thanks for your feedback

  3. richard said

    I know this because I had the same problem after installing CWA and clients couldnt connect from external network 🙂

    On the other hand I would like to contact you regarding a Cisco to OCS trunk issue, and found a post about this, but cannot find your mail address on this blog.

  4. Vangelis said

    Hello i have follow your instructions and i have the same problem…
    But take a look..
    With Firefox browser i can login just fine..but with IE8 i can’t
    Strange things..
    If you know something..it will be very helpfull..

  5. Great information, Spent way too much time on your site and not getting my work done 🙂

  6. Brandon said

    Just wanted to note that we had this issue as well and it was NOT SPN as we had already done this. It ended up being fix from this website:


    Hope that helps someone as we struggled with this for awhile!

  7. Chrissie said

    this site has really been an eye opener,i have just got interested in blogging and hopefully i am able to do so.thanks

  8. Baba said


  9. tim said

    Hey, just wanted to drop by and say awesome post!

  10. max said

    thank you for useful post

  11. […] https://theucguy.wordpress.com/2009/03/27/communcator-web-access-r2-error-0-1-492/ […]

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