Thread:TK-999/@comment-4347751-20130906145512/@comment-2200849-20130908132333

Run  from a terminal. In the resulting output, find the line for your wifi controller. For me, it looks like this: 01:00.0 Network controller: Atheros Communications Inc. AR9485 Wireless Network Adapter (rev 01) now, run the following command: wget http://cdimage.debian.org/cdimage/unofficial/non-free/firmware/wheezy/current/firmware.tar.gz && tar xvzf firmware.tar.gz && cd firmware && ls Now, you'll see a list of various .deb packages, which contain the firmware. Find the one for your wifi controller&mdash;it usually contains the brand name you got from  and it was   for me.

Once you found it, run  to open a root shell, enter your root password & install it as follows: dpkg -i Thefirmwarefilename.deb