The green link LED is an indication that the Ethernet cable plugged into the adapter is live and it stays steady as long as the live cable is plugged in. The blinking amber activity LED is an indications that data is transferring through the adapter. Both these LEDs will not light up when:
- The adapter is not receiving enough power because it is plugged into a port that does not provide the required 900mA (max) of power.
- The drivers for the adapter have not installed properly or are corrupted.
- The Ethernet Cable plugged in is not live or is faulty.
- The adapter has failed.
