| Test | Driver has detected a fatal condition and is
no longer operating. | Adapter is functioning correctly. |
| 10 | Adapter is operating at 10Mbps. | Adapter is not operating at 10Mbps. |
| 100 | Adapter is operating at 100Mbps. | Adapter is not operating at 100Mbps. |
| Link | Adapter is correctly receiving a link signal
from the hub/switch. | Adapter is not receiving a link signal from
the hub/switch. |
| Activity | Adapter is sending or receiving a packet to/from
the hub/switch. | No packet is currently being transferred to/from
the hub/switch. |
| Power | Adapter is receiving power from the system. | The system is not supplying power, or the adapter
is not seated properly in the slot. |