Dear @sean.chen3,
Could you try ./sample_gps_logger --driver=gps.novate --params=connection-type=ethernet,ip=<DeviceIP>,port=2000,sensor2AntennaX=-0.380,sensor2AntennaY=0.5093,sensor2AntennaZ=1.1693,sensor2Antenna2X=0.360,sensor2Antenna2Y=-0.3943,sensor2Antenna2Z=1.1843
It uses TCP. Can you try the above command and change the sensor IP and make sure it is reachable.