This means that the Gateway is not connected to the License Daemon

Sample error message: ERROR: ProbeManager Sampler PPX_ETH (fkm) in Managed Entity TOP - fnet-hksgsl-tb1 is unlicensed

The gateway is required to always connect to the License Daemon. If you encounter an 'unlicensed' message, look for the keyword LicenceManager Not connected to daemon in your Gateway logs, this indicates that the Gateway is not connected to the License Daemon.