User’s Manual 4-21
Operating Basics
Wireless communication indicator
The wireless communication indicator indicates the status of the wireless 
communication functions.
If you used the Task Bar to disable W-LAN, restart the computer or follow 
the procedures below to enable the system to recognize W-LAN. Open or 
click the following: start, Control Panel, System, Hardware Device 
Manager, Network adapters, Atheros AR5001X+ Wireless Network 
Adapter or Intel® PRO/Wireless LAN 2100 3B Mini PCI Adapter or 
Intel® PRO/Wireless 2100A LAN Mini PCI Adapter or Intel® PRO/
Wireless 2200BG Network Connection and enable.
LAN 
The computer has built-in support for Ethernet LAN (10 megabits per 
second, 10BASE-T) and Fast Ethernet LAN (100 megabits per second, 
100BASE-Tx).
LAN cable types
If you are using Fast Ethernet LAN (100 megabits per second, 
100BASETX), be sure to connect with a CAT5 cable or higher. You cannot 
use a CAT3 cable.
If you are using Ethernet LAN (10 megabits per second, 10BASE-T), you 
can connect with a CAT3 or higher.
Indicator status Indication
Indicator off Wireless communication switch is set to off. 
Automatic power down because of overheating. 
Power malfunction
Indicator glows Wireless communication switch is on. Wireless 
LAN is turned on by an application.
Do not install or remove an optional memory module while Wake-up on 
LAN is enabled.
The Wake-up on LAN function consumes power even when the system is 
off. Leave the AC adaptor connected while using this feature.
The computer must be configured properly before connecting to a LAN. 
Logging onto a LAN using the computer’s default settings could cause a 
malfunction in LAN operation. Check with your LAN administrator 
regarding set-up procedures.