A: Check your Ethernet cable (Cat5e or Cat6 required), USB port (USB 2.0 limits to ~480 Mbps, real-world ~300 Mbps), and ensure both router and device support gigabit.
If the device driver is not working, try uninstalling it via Device Manager and plugging the device back in to force a fresh install. frontech jil 1731 driver
Once the driver is successfully installed, the software interface is very bare-bones. A: Check your Ethernet cable (Cat5e or Cat6