I am a new user . i currently own a Xperia x8 and xperia arc . In both the phones i was not able to connect to my wifi router . My wifi router supports 802.11 b/g ( its a 2010 model ) . So if you find any solution please comment . my security is WPA with encryption type as AES . Xperia X8 has android 2.1 and arc has 2.3.4 . i cant browse in either phones .