HP D5970A - NetServer - LCII Installation Manual page 46

Chapter 9
LED Function Indicators
LED Meaning
ACT/LNK The adapter and switch are receiving power; the cable
On connection between the switch and adapter is good.
ACT/LNK The adapter and switch are not receiving power or there
Off is a driver configuration problem.
If the LED is off:
Make sure power is connected to the PC. If power is
connected and the LED is still off:
Make sure the WOL cable is attached and power is
applied to the computer.
Make sure the network cable is attached at both ends.
Make sure you've loaded the network drivers.
Check all connections at the adapter and the switch and
make sure both ends are connected.
Try another port on the switch.
Make sure the duplex mode setting on the adapter
matches the setting on the switch.
Make sure you have the correct type of cable between the
adapter and the hub. 100BASE-TX requires two pairs.
Some hubs require a crossover cable, while others
require a straight-through cable.
Make sure you've loaded the correct network drivers.
ACT/LNK The adapter is sending or receiving network data. The
Flashing frequency of the flashes varies with the amount of
network traffic.
If the ACT/LNK LED does not flash, the cause could be:
The network may be idle. Try accessing a server.
The adapter may not be transmitting or receiving data.
Try another adapter.
Make sure you're using two-pair cable for TX wiring.
100 On Operating at 100 Mbps.
100 Off Operating at 10 Mbps.
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Troubleshooting and FAQs