Network Management

List Resources fails on Windows Server 2008 and Windows Server 2008 R2 SP1 Agent nodes in the SolarWinds Platform

When attempting to list available resources for monitoring, the following message appears: Agent not Responding.

First published date

12/22/2025 4:05 PM

Last published date

12/22/2025 4:05 PM

Overview

Listing Resources for Windows Server 2008 and Windows Server 2008 R2 SP1 Agent nodes on the page at Settings > Manage Nodes in the SolarWinds Platform Web Console fails, with a message:
Agent not Responding 

This issue also prevents the nodes from polling correctly.

 

In the log at C:\ProgramData\SolarWinds\Discovery Engine\OrionDiscoveryJob.log, the following error can be found:

[STP SmartThreadPool Thread #47] ERROR Activity - Unhandled exception occured when running activity SolarWinds.Orion.Discovery.Framework.WMI.WmiProbe on endpoint IP: 192.168.255.3 
System.TypeInitializationException: The type initializer for 'SolarWinds.Net.WMI.WindowsConnectionManager' threw an exception. ---> System.IO.FileLoadException: Could not load file or assembly 'Microsoft.Management.Infrastructure, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. Strong name validation failed. (Exception from HRESULT: 0x8013141A) ---> System.Security.SecurityException: Strong name validation failed. (Exception from HRESULT: 0x8013141A)
   --- End of inner exception stack trace ---
   at SolarWinds.Net.WMI.WindowsConnectionManager..cctor()
   --- End of inner exception stack trace ---
   at SolarWinds.Net.WMI.WindowsConnectionManager.get_Instance()
   at SolarWinds.Orion.Discovery.Framework.WMI.WmiProbe.Execute(ActivityContext activityContext, DiscoveredEndpoint endpoint)
   at SolarWinds.Orion.Discovery.Contract.Activity.Invoke(ActivityContext activityContext, DiscoveredEndpoint endpoint)

 

Product section

Orion Platform

Cause

Missing Windows Management Framework 5.1 on the agent node.

Resolution

To address this issue, download and install the Windows Management Framework 5.1 (filename Win7AndW2K8R2-KB3191566-x64.zip) on the agent node.

  1. Connect to the agent node.
  2. Open a browser, navigate to Windows Management Framework 5.1, and download Win7AndW2K8R2-KB3191566-x64.zip.
  3. Extract the .zip and run Win7AndW2K8R2-KB3191566-x64.msu to install the missing framework.
  4. Restart the agent services.
  5. In the SolarWinds Platform Web Console, try to List Resources for the agent node again.