I've bought a new laptop, ASUS K53E SX1245V . I don't know if this problem happens on any other LM Edition, but when I boot into the live DVD, I am unable to activate Wireless LAN. Even when I do iwconfig I can't connect, and when I list wireless lan aps ( iwlist wlan0 scanning ) it says "Network is down" when I do ifconfig wlan0 up or set an address I get another error: "SIOCSIFFLAGS: Cannot assign requested address".
I thought Atheros AR9485 wasn't compatible with Linux, but I tested another live CD (System Rescue CD) and wireless lan works out of the box. aht9k module is loaded and ath9k_hw too as it is on SystemRescueCD.