Sony VAIO VGN-T300 Series Connection Manual page 15

WLAN Settings dialog box
To deactivate WLAN connectivity, select Disable for the Status field drop-down
box on the WLAN Settings dialog.
By default, WLAN uses theIEEE802.11b/g standard technology for WLAN
connectivity.
The standard includes the Wired Equivalent Privacy
, which is a security protocol and WiFi Protected Access.
method
To use IEEE802.11b or IEEE802.11g WLAN connectivity standard only, select
them from the Mode field drop-down box.
Wireless LAN devices using the IEEE802.11a standard and the ones using the
IEEE802.11b or g standard cannot communicate because the frequencies are different.
Wireless LAN devices using the IEEE802.11g standard can only communicate with a
device using the IEEE802.11b standard, not with the IEEE802.11a standard.
IEEE802.11b: The standard speed is 11 Mbps, or about 30 to 100 times faster than a
standard dial up.
IEEE802.11g: The standard speed is 54 Mbps, or about 5 times faster than a Wireless
LAN device using the IEEE802.11b standard.
Using the Wireless LAN connection
(WEP)
encryption
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