Sony Vaio PCWA-C300S Operating Instructions Manual page 47

If the computer you are using incorporates another Ethernet interface
besides the Wireless LAN PC Card, disable the other interface as follows.
1
Click "Start", point to "Settings", and click "Network and Dial-
up Connections".
The "Network and Dial-up Connections" window appears.
2
Select the network adapter to disable.
3
On the "File" menu, click "Disable".
4
Click to close the "Network and Dial-up Connections"
window.
Windows XP operating system:
1
Click "Start" and click "Control Panel".
Control Panel appears.
2
Double-click the "System" icon.
The "System Properties" dialog box appears.
z
Hint
If the "System" icon is not displayed, click "Switch to Classic View".
3
Click the "Hardware" tab, then click "Device Manager".
The "Device Manager" window appears.
4
On the "View" menu, click "Devices by type".
5
Double-click "Network adapters".
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