What is this?

This knowledgebase contains questions and answers about PRTG Network Monitor and network monitoring in general.

Learn more

PRTG Network Monitor

Intuitive to Use. Easy to manage.
More than 500,000 users rely on Paessler PRTG every day. Find out how you can reduce cost, increase QoS and ease planning, as well.

Free Download

Top Tags

View all Tags

elements return a unknown state: System Board 1




We are getting a warring for our Dell T420 Server in PRTG, however IDRAC and ESXi show no issues.

Is PRTG hardware sensor getting a value it does not understand ?

[Hardware Status]

Unknown. 3 elements return a unknown state: System Board 1 Power Optimized 0 ---; Add-in Card 3 SD1 0 ---; Add-in Card 3 SD2 0 ---

dell hardware t420

Created on Jul 6, 2020 2:58:38 AM

1 Reply

Accepted Answer



Hello there,

The SOAP protocol shows an unknown state for the components, the system can't get an actual state from those. If you don't want to get informed about this, you can switch to "Do not show unknown states" in the sensor settings.

Kind regards,
Birk Guttmann, Tech Support Team

Created on Jul 6, 2020 8:29:14 AM by  Birk Guttmann [Paessler Support]

Disclaimer: The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.