Have you checked that win the Nintendo Zone app? Check the Internect Connection Sharing is properly set by the script, and make sure connection is not restarting if you're using BASE256 with the default delay. You can't remove the encryption in windows.When I do do the connection test, the 3DS connects to the AP, but the AP doesn't connect to the internet. What to do?
Harsky any windows 7 compatible wireless adapter will work, not only USB. But Atheros and Intel based should have a problems. Anyway don't run to the shop right now untill recently released firmware 9.3 changes is investigated