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Error 401.2 with OWA

By joemoran ·
Folks, I need some help. I've got an Exchange 5.5 SP4 server running OWA and authenticating via NT Challenge/Response.

Sometimes, and it seems to be intermittent, my users going to the site are greeted by: 401.2 Unauthorized: Logon Failed due to Server Configuration.

The error appears immediately upon entering the URL into the browser. No logon box is displayed.

This is the same type of error you get if, when presented with the logon box, you enter incomplete or incorrect information.
Seems to me that in certain instances, the browser might be automatically passing some type of authentication to the server which is then rejected, but I cannot find anything on TechNet that speaks to this issue.

Has anyone encountered this issue before?

Thanks in advance,

Joe

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Error 401.2 with OWA

by Pan 13 x In reply to Error 401.2 with OWA

allow plain text on your iis server. you will not run into a problem that wasy!

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Error 401.2 with OWA

by joemoran In reply to Error 401.2 with OWA

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Error 401.2 with OWA

by kerst11 In reply to Error 401.2 with OWA

Go to support.microsoft.com and check out the following Q articles: Q261689, Q251199, Q253667, Q294558, Q289679, Q262981, Q286409, Q289858

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Error 401.2 with OWA

by joemoran In reply to Error 401.2 with OWA

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Error 401.2 with OWA

by joemoran In reply to Error 401.2 with OWA

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