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An agent software has been deployed to the Windows domain controller, however the server is being polled through WMI. What is causing this irregularity?
In the SolarWinds Platform, the method used to poll a node (SNMP, WMI, or Agent) is a specific property assigned to the node record in the database. According to the SolarWinds Platform Agent Management guide, simply installing the agent software on a remote server does not automatically convert the existing node record to use that agent for data collection.
If a node was originally added to the system via WMI, the platform will continue to attempt to poll it via WMI over the network using RPC/DCOM, even if the SolarWinds Agent is successfully installed and running on the target machine. To fix this 'irregularity' and take advantage of the agent's encrypted, single-port communication, an administrator must edit the node and change the polling method (D).
By going to Manage Nodes, selecting the domain controller, and clicking 'Edit Properties,' the admin must find the 'Polling Method' section and select 'Agent'. Once saved, the Polling Engine will stop using WMI network calls and will instead wait for the agent to provide the data (if in Agent-Initiated mode) or reach out to the agent via the agent's port (if in Server-Initiated mode). This change ensures that the monitoring load is shifted to the agent and that the communication adheres to the desired security profile.