I had the same problem with a US Robotics stuff.
Consider:
- A normal user created with no password is a special case. It may be created without net access, even if you later enable password protection. What matter is the status of the account the first time you log. Be sure your plain account has net access rights.
- I solved my problem creating a plain account with password. Verified it had net access with cable. Then uninstalled the wireless software and removed the hw from the system and reinstalled it all. To be on the safe side I also allowed all rights to users to the folder containing the wireless software. At this point I had the thing working as normal user too.
Hope this helps.
-cba