Today raised wifi on the example of ASUS Pro 52RL notebook. My impression is some kind of crap, not a laptop. There is no information on it anywhere, even on the site of the asus. It is sold only in mediamarkt. Well, okay, more to the point.
It stands on the Atheros AR5006EG wireless card. Ubunt found and, by default, turned on a proprietary driver that did not work. Madwifi didn't help me either. In the end, pretty googling, I came across this. To begin with, as advised, I added to the /etc/modprobe.d/blacklist-common file
sudo gedit /etc/modprobe.d/blacklist
line:
blacklist ath_pci
(in fact, there was no such file, it was just a blacklist, so I added a line to it and just in case I created blacklist-common). Rebooted. Installed Windows Firewood Interpreter ndiswrapper:
sudo apt-get install ndiswrapper-common
I downloaded the driver here (Windows XP 32-bit). Unpacked. Next commands
sudo ndiswrapper -i net5416.inf
sudo ndiswrapper -m
Rebooted and, voila, wifi works. A new wlan0 interface has appeared in the iwconfig list.