I don’t know how much help this will be, but if you a visit a local hotspot, you will be able to isolate the problem, i.e., your router settings. In my case Dell determined my Net Card was bad, so another Axim is on its way. I found this to be a good site:
http://www.wi-fihotspotlist.com
Most Panara Breads, (if not all of them) are great hotspots.