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Why does my MSExchangeIS: Active User Count show zero?



I've insatalled the WMI Exchange Server sensor on my Exchange 2010 server and I see data in most of the performance counters as expected, but my MSExchangeIS: Active User Count remains at zero.

exchange prtg wmi

Created on May 15, 2013 3:11:43 PM

2 Replies

Accepted Answer



Hi Justin,

unfortunately the requested counter does not contain a value anymore. It is frozen to 0. Please use a WMI-Custom Sensor until we have fixed the sensor to retrieve another counter.

Please refer to How do I create a WMI Custom Sensor? (Topic 2743) in our knowledge-base for examples creating the sensor.

The query to be placed in the wql-file is

SELECT ActiveUserCount FROM Win32_PerfRawData_MSExchangeRPCclientaccess_MSExchangeRPCclientaccess

Kind Regards

Created on May 16, 2013 3:54:11 PM by  Dieter Loskarn [Paessler Support]

Last change on May 16, 2013 3:54:30 PM by  Dieter Loskarn [Paessler Support]




since the current stable ( you get some additional sensors offered during creation of the exchange-sensors that will cover the new values.

The affected WMI-Classes are:

  • from 'MS Exchange RPC Client Access'
    • Active User Count
    • User Count
    • Connection Count
  • from 'MS Exchange OWA'
    • Current Unique Users
    • Average Response Time

Kind regards

Created on Jun 27, 2013 3:40:22 PM by  Dieter Loskarn [Paessler Support]

Last change on Jun 27, 2013 3:57:14 PM by  Dieter Loskarn [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.