Go to Setting/Internet Connections/Connections/New/Next Change Connection Name (could be any). Answer No on "Scan for available Wi-Fi networks?" AND you can enter any parameters manually. BUT!!! Look like phone has bug with manually entered connections. If you enter this manually phone didn't automatically switch from 3G to this connection (when "Switch to Wi-Fi when available" checked). https://bugs.maemo.org/show_bug.cgi?id=6779