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When device is unplugged WMI sensors are not down for long time



I am having installation with 700+ sensors which include 100+ WMI sensors for different devices. when I unplug one of device Ping sensor mark as down after 1 min but all WMI sensors (CPU/Memory/Process) are not turned down even after 5-7 mins. It looks like PRTG is sending WMI request but not receiving any response or requests are not getting time out.

Is there any way to reduce WMI request timeout so that they get down if no response received?

cpu memory wmi-sensors

Created on Mar 17, 2021 3:18:01 PM

1 Reply



Hello there,

Since WMI is a very load intensive protocol, PRTG keeps the WMI session open for a quite long time to maintain a good performance even if there are steady connection issues. Our recommendation is to configure the Ping sensor as Master sensor for parent (Sensor Settings -> Schedules, Dependencies, and Maintenance Windows), so the WMI Sensors get paused as soon as the ping sensor switches to a down state.

Kind regards,
Birk Guttmann, Tech Support Team

Created on Mar 19, 2021 11:54:39 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.