3Com 3CRDAG675, Quick Start Manual

11

2

Troubleshooting

Confirming Device Installation

1

With your Wireless LAN product installed in the computer, double-click the 

My Computer

icon. If you are running Windows XP, click 

Start > Control Panel

 and go to step 3.

2

Double-click the 

Control Panel

 icon.

3

Double-click the 

System

 icon. The System Properties window appears, detailing your 

system setup.

4

Click the 

Device Manager

 tab. A list of devices appears, arranged by type.  If you are 

using Windows XP or 2000, click the 

Hardware

 tab and click 

Device Manager

.

5

Double-click 

Network Adapters

. Select:  

3Com 3CRPAG175 Wireless LAN PC Card or 

3Com 3CRDAG675 Wireless LAN PCI Adapter.

6

Double-click the entry to display a description of the current status.
The device status should indicate "This device is working properly."

7

Close the windows you have opened until you return to the desktop.

Diagnosing Problems

If you have difficulty using the Wireless LAN Product, try the solutions in the following 
table.  If you continue to experience difficulty, see the sections, "Removing Your Wireless 
LAN Product" and "Updating the Wireless LAN Product driver.

Problem

Solutions

Wireless LAN PC Card LED is off 

Make sure the PC Card is properly inserted in the slot and that the XJACK antenna is fully 
extended. Confirm device installations as described above.

Check the Wireless LAN PC Card icon in the Windows Device Manager and make sure the 
PC Card type can be recognized.

Wireless LAN PCI Adapter LED is off

Follow the PCI adapter installation procedure and make sure the PCI adapter is properly 
inserted in the slot. Confirm device installations as described above. Check the Wireless LAN 
PCI Adapter icon in the Windows Device Manager and make sure the PCI adapter can be 
recognized.

Wireless LAN product installs as an 
unknown device

Remove the unknown device and repeat the installation procedure. Make sure you insert the 
3Com CD and run the setup. Then insert the Wireless LAN product.

The Windows Add Hardware Wizard 
was unable to locate the Wireless LAN 
product drivers.

You may have had no CD or the wrong CD inserted in the drive, or the 3Com CD may not 
have been ready when the wizard looked for the drivers.

Installation program does not finish or 
the driver fails to load

Use the Device Manager to resolve resource conflicts that may exist. Select System from the 
Control Panel, and then click the Device Manager tab.

Network association is intermittent.

Make sure the XJACK antenna is fully extended. Try reorienting your laptop. For best use of 
the antenna:

■

Keep the area around the antenna clear from materials that could block radio 
transmission, such as metal objects, electronic devices, and cordless telephones.

■

If the signal is weak, change the direction of your laptop slightly.

■

If necessary, move your computer a few inches to find a better signal.