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IIS Internal Server Error - Failed Request Logs AUTHENTICATE_REQUEST

Ken Mann 1 Reputation point
2021-07-21T13:23:30.123+00:00

Intermittently getting an error 500 on API calls, a couple times a day. I enabled Failed Request Tracing and get the severity level warning entry below. If anyone could provide insight as to where to look, I'd be grateful. The call that fails (from what I'm told) works successfully when tried again. But I have not been able to replicate the issue myself.

MODULE_SET_RESPONSE_ERROR_STATUS

ModuleName
__DynamicModule_Microsoft.Owin.Host.SystemWeb.OwinHttpModule, Microsoft.Owin.Host.SystemWeb, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35_a7266c5b-d5fe-462a-ac35-965e391233f2

Notification
AUTHENTICATE_REQUEST

HttpStatus
500

HttpReason
Internal Server Error

HttpSubStatus
0

ErrorCode
The operation completed successfully.
(0x0)

Internet Information Services

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  1. Ken Mann 1 Reputation point
    2021-07-22T15:09:56.257+00:00

    I am using Anonymous Authentication, and it is set up to use the Application Pool Identity.

    Are there any additional logging I can enable to help debug this?

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