Did you already try to change the router settings and use WPA? Or is it necessary for you to use WEP?
I also had some trouble connecting to my wifi and had to restart the phones wireless card a few times until it worked.
the second way I tried is to use additional software for the connection. e.g. WiFi Scanner
By using this app my success rate is much higher.
— modified on Mar 21, 2010 11:22:05 PM