First of all, we have to distinguish between remote and local WMI checks, the remote ones will be carried out from the Pandora FMS server (WMI server) on the agent, and the local ones will be executed locally from the Windows® machine through the Pandora FMS agent.
In case that the WMI modules are not working, the first thing that we have to check is that we have the WMI server enabled in the Pandora FMS configuration file, so, in /etc/pandora/pandora_serve.conf” check the wmiserver token, if it is configured in 1, if it is not, make the change and then restart the pandora server: /etc/init.d/pandora_server restart.
In some systems the remote access to WMI is not activated and it is necessary to activate it to be able to be consulted from the outside, so we have to check the firewall of our Windows® agent to check that this type of consultation is enabled.
Another check to do would be to check that we have installed in the pandora server the WMI package, if not we need to install it:
yum install wmi