HP LH4r HP Netserver 10/100TX PCI LAN Adapter Guide - Page 46

Chapter 9 Troubleshooting and FAQs LED Function Indicators LED ACT/LNK On ACT/LNK Off • • • • • • • • • ACT/LNK Flashing • • • 100 On 100 Off Meaning The adapter and switch are receiving power; the cable connection between the switch and adapter is good. The adapter and switch are not receiving power or there 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. The adapter is sending or receiving network data. The 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. Operating at 100 Mbps. Operating at 10 Mbps. 38