Sony XPERIA Manual page 154

Handset is connected.
The password, for a household wireless LAN router, is sometimes found on a sticker on the router

(WEP, WPA, KEY, etc.). Contact the router manufacturer for information. For password for a public
wireless LAN, check with user's service provider.
Entering a password is not required if an access point is not security protected.

xperia_11_Wi-Fi／Bluetooth(R).docx
6