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Showing posts from May 7, 2012

How to deal with SharePoint 2010 exception "An exception occurred when trying to issue security token: The server was unable to process the request due to an internal error"

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Scenario:
You receive the below exception when you try to logon to a site that has been configured to use Claims Based Authentication with a custom membership provider using FBA credentials:

Event ID from Event Log  - 8306

An exception occurred when trying to issue security token: The server was unable to process the request due to an internal error.  For more information about the error, either turn on IncludeExceptionDetailInFaults (either from ServiceBehaviorAttribute or from the <serviceDebug> configuration behavior) on the server in order to send the exception information back to the client, or turn on tracing as per the Microsoft .NET Framework 3.0 SDK documentation and inspect the server trace logs..

Explanation:

This error started to appear in our QA environment which does not have Visual Studio installed. I have tried starting the service "Claims to Windows Token Service" but that did not help either.

I have made sure that all configuration changes required for …