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Home > Success Center > Network Performance Monitor (NPM) > Unable to add nodes through the Web Console

Unable to add nodes through the Web Console

Created by Flavio Porfirio Correia, last modified by MindTouch on Jun 23, 2016

Views: 1,059 Votes: 1 Revisions: 5


This article describes the issue when you are unable to add nodes through the Web Console GUI.



NPM version



This issue occurs when the Core Business Layer plugin fails to start.

This can be seen through diagnostics requested in the log file BusinessLayerhostHost.log:

2016-04-09 08:28:32,067 [8] ERROR SolarWinds.BusinessLayerHost.PluginManager - Plugin "Core Business Layer" failed to start.
System.Runtime.Serialization.SerializationException: Type 'SolarWinds.InformationService.Contract2.InfoServiceFaultContract' in assembly 'SolarWinds.InformationService.Contract2, Version=2013.2.0.77, Culture=neutral, PublicKeyToken=null' is not marked as serializable.


  1. Go to the Start menu > All Programs > Solarwinds Orion.
  2. Click Advanced Features.
  3. Open the Orion Service manager.
  4. Click Shutdown Everything to stop all Orion services and Start Services to start the services.


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