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>Problem solved. The issue was the Application Pool Idle timeout setting that was shutting down the worker processes after being idle for 20 minutes. Actually Paul Mrozowski mentioned it to me in me previous thread on the same subject but I could not figure what he meant.
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>I went to the customer and by looking around their web server IIS settings found this. I created a separate Application pool for my application and set the Shutdown setting to 2000 minutes.
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>Thank you, Paul.


You're welcome - glad it helped.