I think the Nokia WLAN wizard is pretty poor myself, seems to only work when it feels like it then after while it just says "system error" forcing a *#7370# reset.
😊
Any other software to scan for WiFi?
un free .. but not bad ..
http://my-symbian.com/s60v3/software/applications.php?faq=4&fldAuto=26
free trial as I recall