Thanks to Albert, I can confirm this was an upstream kernel issue. I tried Natty Alpha 1 with a 2.6.37 kernel and my network works again. I've marked this bug as a duplicate of #619841.
Thanks to Albert, I can confirm this was an upstream kernel issue. I tried Natty Alpha 1 with a 2.6.37 kernel and my network works again. I've marked this bug as a duplicate of #619841.