Apex One (Mac) displays Security Agents as inactive:
If you use the agent uninstallation program to remove the agent program from the endpoints but do not unregister the Security Agent from the server.
If you reformatted the endoint hard drive without unregistering the Security Agent from the server.
If you manually removed the agent files.
If a user unloads or disables the Security Agent for an extended period of time.
To have the agent tree display active Security Agents only, configure Apex One (Mac) to automatically remove inactive Security Agents from the agent tree.