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Home > Success Center > Network Performance Monitor (NPM) > NPM - Knowledgebase Articles > Main Engine Down Specified Cast is Not Valid

Main Engine Down Specified Cast is Not Valid

Created by Alexander Aguilar, last modified by MindTouch on Jun 23, 2016

Views: 2,202 Votes: 3 Revisions: 19

Overview

This article provides steps to resolve the error when the Engine shows down after running a Windows update.

 

 

The following error would be found in the businesslayerHost.log