I just fixed my problem connecting to the internet with my Acer netbook, and wanted to share the solution, since I didn't see it anywhere else. I have an Acer Aspire One, model number A0D255E (which will appear on the sticker as Aspire One D255E with some other numbers). I could connect to my router with the computer, but not the internet. Other computers could access the internet on the router. I installed a previous driver for the card (atheros ar5b95), version 184.108.40.206, and the card worked. Perhaps reinstalling the same driver may have worked as well. But I happy that the wireless card works once again.