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Home > Success Center > Server & Application Monitor (SAM) > WQL Query return value is empty or doesn't exist

WQL Query return value is empty or doesn't exist

Created by Tiarnan Stacke, last modified by MindTouch on Jun 23, 2016

Views: 112 Votes: 0 Revisions: 6


A WMI Monitor Component periodically goes into an Unknown State with the following error:

WQL Query return value is empty or doesn't exist


All Versions of SAM


The WMI Monitor will go into an Unknown State if the query sometimes returns no information.


Manually run the query via wbemtest when the issue is occurring:

  1. Run > wbemest.
  2. Connect using the following credentials:
    Namespace: \\\root\cimv2
    User: DOMAIN\Username
    Password: **********
  3. Query.
  4. Run the same query that SAM is running.


If you get no data returning periodically then this is why the error displays within the SAM Component Monitor.


Last modified
03:45, 23 Jun 2016