How to test WMI connectivity using Microsoft Windows tools.

Document ID : KB000034976
Last Modified Date : 11/09/2018
Show Technical Document Details
Introduction:

This article describes a native windows tool for testing WMI connectivity can be used to test connectivity. The tool described below is "wbemtest".

Instructions:

Start wbemtest:

  1. select Windows -> Run
  2. When prompted for the Command to run, enter wbemtest.
  3. When the dialog appears, select "Connect".


You can point wbemtest to your computer:

  1. For the local machine, change the Namespace from root\default to root\cimv2.
  2. For a different host, prefix with \\host, for example \\Server1\root\cimv2. Enter in User and Password information, as needed to access the remote system.

An example query you can use to test the connection is to list all of the windows services:

select * from Win32_Service


Note on Rights:
If a system is locked down very often adding the user to the local Administrator group will not allow remote WMI access.
To allow remote WMI access please see the following:

The following works on Window 2003 R2 SP 2, Windows Server 2012 R2

  1. Add the user(s) in question to the Performance Monitor Users group
  2. Under Services and Applications, bring up the properties dialog of WMI Control (or run wmimgmt.msc). In the Security tab, highlight Root/CIMV2, click Security; add Performance Monitor Users and enable the options : Enable Account and Remote Enable
  3. Run dcomcnfg. At Component Services > Computers > My Computer, in the COM security tab of the Properties dialog click "Edit Limits" for both Access Permissions and Launch and Activation Permissions. Add Performance Monitor Users and allow remote access, remote launch, and remote activation.
  4. Select Windows Management Instrumentation under Component Services > Computers > My Computer > DCOM Config and give Remote Launch and Remote Activation privileges to Performance Monitor Users Group.

Notes:

  • As an alternative to step 3 and 4, one can assign the user to the group Distributed COM Users (Tested on Windows Server 2012 R2)
  • If the user needs access to all the namespaces, you can set the settings in 2. at the Root level, and recurse the permissions to the sub-namespaces via the Advanced window in Security
Additional Information:

https://msdn.microsoft.com/en-us/library/aa393266.aspx