Windows dns an unknown error occurred while validating the server
If an SPN is already registered on the app pool account in AD then make sure that it is not registered on other accounts. The event indicates that a task is being invoked by the MBAM Setup.
This error is also logged if MBAM cannot access Active Directory (AD) to validate user accounts.
Verify that the user who is running the MBAM setup has remove permissions on the SSRS instance that is configured as an SRS Role point in CM.
During MBAM web site/web service installation, MBAM setup verifies if necessary prerequisites are in place.
Indicates that a terminating error has occurred while performing an MBAM Configurator task.
The error message will contain more details about the error.
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The tables in this section provide information about MBAM Server log event IDs.