iis 7 - ASP.NET application, long delay in IIS in AuthenticateRequest -


we have http module measures how long server requests spend in individual states. in 1 of our servers see requests take large amount of time in authenticaterequest state - seconds, minutes.

this windows 2008, iis 7, integrated pipeline, .net 3.5 asp.net application

we not use authentication. "anonymous authentication" 1 enabled.

any suggestion @ appreciated.


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