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What should I do in case of WMI errors?



Is there a recommended approach to find issues that cause errors with WMI sensors? Can you provide a troubleshooting guide on how to solve these WMI issues to get my WMI sensors working?

prtg troubleshooting wmi wmi-error wmi-sensors

Created on Apr 3, 2014 5:04:23 PM by  Gerald Schoch [Paessler Support]

Last change on Jan 17, 2023 12:22:40 PM by  Brandy Greger [Paessler Support]

3 Replies

Accepted Answer



This article applies as of PRTG 22

Common WMI problems and solutions

PRTG users often complain about problems and errors when monitoring their systems with the Windows Management Instrumentation (WMI) sensors of PRTG. However, if you encounter issues with WMI sensors, keep in mind that, in most cases, WMI errors are the result of an improper WMI configuration or WMI installation.

To get your WMI monitoring working (again), also in the case of single sensor errors, follow this guide.

1. Check the basics

Familiarize yourself with the WMI technology. In case of problems with WMI, we strongly recommend that you go through the following article and explicitly check that your configuration meets the basic requirements:

If your WMI sensors show WMI error PE263 after updating as of PRTG, see this article:

2. Check the WMI connection

If your system meets the requirements as listed in the article above, and WMI monitoring still does not work, test the connectivity and availability of the corresponding WMI counters. Run our WMI Tester on the probe system with the malfunctioning WMI sensors:

3. Solutions to the most common WMI errors

If you cannot get a WMI connection with WMI Tester, check our list of the most common WMI errors and possible solutions, especially if you encounter errors in the 800xxxxx range:

4. The repair list

If you have tried all the approaches as outlined in the articles above and your WMI sensors still fail, see the following article that has many of the common repair procedures.

Important notice: The options in the following article are not trivial, so we strongly recommend that you try out the tips above first.

Created on Apr 3, 2014 5:21:24 PM by  Gerald Schoch [Paessler Support]

Last change on Jan 17, 2023 12:29:46 PM by  Brandy Greger [Paessler Support]



To repair the WMI, the following worked for us (run as administrator):

To check: winmgmt /verifyrepository To repair: winmgmt /salvagerepository

Created on Feb 25, 2019 10:39:17 AM

Last change on Feb 25, 2019 12:00:36 PM by  Erhard Mikulik [Paessler Support]



Try (run as administrator) Step 1: winmgmt /resetrepository Step 2: winmgmt /verifyrepository

More info:

Regards, Andrei

Created on Nov 11, 2020 9:36:05 PM

Last change on Nov 16, 2020 11:17:43 AM by  Sebastian Kniege [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.