If a Sensor has failed and is no longer operational, you must replace it with a new Sensor.
Note
You cannot swap out one Sensor model with another without reconfiguring the trust arrangement between the Sensor and the Manager. If you want to, for example, replace an NS3200 Sensor with an NS5200 Sensor, you must treat the installation and configuration as if you were installing a new Sensor.
Note
You also cannot replace a regular Sensor with a failover-only (FO) Sensor model. These Sensors are for use only in a failover configuration and cannot be used as a standalone Sensor.