The system’s discovery feature (learn mode), initiated from a Supervisor station, finds controllers on the local subnet. Discovery is not possible when controller stations are on the other side of a router. Since an Ethernet cable is limited to 300 ft (90 m) and large systems may have multiple routers, it is almost certain that the system cannot discover all the stations in a large network. In addition to discovering remote stations, you may need to manually add stations to the Supervisor.
The device management features are not available in a Supervisor station where configuration is called System Setup as opposed to Controller Setup.