Network Management

Troubleshoot a Test Failed result for SNMP nodes in SolarWinds Platform

This article will run through steps you can follow to troubleshoot a 'Test Failed' result for SNMP nodes in SolarWinds Platform.

First published date

10/22/2018 3:46 PM

Last published date

12/17/2025 5:31 PM

Overview

In your web console when adding/editing SNMP nodes, you may come across a 'Test Failed' error when testing community string/credentials. This can also occur with existing nodes that have been previously added. It can also prevent the List Resources page from populating since these credentials are used to gain access to read the machine.

 

Product section

Orion Platform

Cause

  • Target node is unreachable
  • Community string is invalid
  • OIDs required for SNMP monitoring are not available

Resolution

Prerequisites

It may be that the user has done everything on the node to configure SNMP and still get the TEST FAILED result in the SolarWinds Platform.

  • Verify that you have restarted the SNMP service on the node after changing the community string (IF Required / Applied).
  • Verify that you have disabled the Windows firewall on both the SolarWinds Platform and the Windows node you are trying to add (a Target Node).
  • Verify you are able to ping the node from the SolarWinds Platform Server.
  • Add a remote site node and make sure that the firewall rules/NAT are configured to allow SNMP traffic. This could be an issue when the firewall could block the SNMP traffic over the VPN for the remote site or not allow even pass through.
  • Some firewall is required to enable ICMP/SNMP on an interface level. Even if you have configured SNMP, it should still be allowed on the interface level. (Below is an example from SonicWall Firewall) **Do not use the @ sign in the SNMP community string.
 
              

Troubleshooting

Verify and isolate the issue for SNMP (communication) using SNMP Test on the SolarWinds server with Wireshark.

  1. Install Wireshark on the SolarWinds server.
  2. Start capturing data from the correct interface, using a capture filter of the node IP address and port 161
Test_failed.PNG

  1. Go to the SolarWinds Web Console page and try to add the node. You will get the Test Failed message:
  2. Check Wireshark and verify the response from the node. Orion sends 3 requests and if no response is received from the node, you will get the Test Failed message.
This is to confirm that the SolarWinds Platform has not received any response back from the node, and the Result is TRUE as Failure



The requirement to pass the test



SolarWinds Platform sent get-request 1.3.6.1.2.1.1.2.0 to determine the SNMP connectivity which was responded by the Node with valid Information:


In the Response packet, the value should be returned in the packet.
**This should not be NULL. If there is no value returned in the packet, the test will fail.**


 

**Make sure that the device setup has read access permit to the SNMP and interface features.**

 

IMPORTANT NOTE

The SNMP test will also fail if these OID's are not returned. Make sure you are able to reach these OID's when running SNMPWALK:

  • 1.3.6.1.2.1.1.1 sysdescr
  • 1.3.6.1.2.1.1.2 sysobjectid
  • 1.3.6.1.2.1.1.3 sysuptime

 

To run SNMPWALK for the node, see Run SolarWinds SNMP Walk.