Sony PCWA-A500 - Manual (Page 38)

The Encryption Key, in its ex-factory setting, is last five digits of the Access Point ID. Refer to the Access Point Firmw are Upgrade Utility Help file for
details on returning to the ex-factory settings of the Access Point.
Notes
 Other clients connected to this Access Point cannot connect to the Access Point if the Wireless connection settings, such as the Encryption Key,
are changed. In that case, use the Wireless Palette to change the Access Point registration contents for each client.
 Also, the Encryption Key is w hat w e call the 40-bit encryption function that conforms to IEEE802.11. It is also sometimes called the "WEP Key" in
other company products.
I w ant to change the Encryption Ke y.
Use one of the Access Point Setup Utilities on a computer containing the Wireless LAN PC Card to change the Encryption Key. Communications betw een
the Access Point and the above computer are maintained because the change in the Encryption Key is simultaneously reflected on the computer. On any
other computers connected to the same Access Point, how ever, you must use the installed Wireless Palette to modify the Access Point's configuration
(the Encryption Key in this case).
Note that access to the Wireless LAN Access Point fails if the modification is not performed.
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