Hello, thanks for the solution. Here it works this way:
rmmod ath9k
rmmod ath9k_common
rmmod ath9k_hw
rmmod ath
rmmod mac80211
rmmod cfg80211
rfkill block wifi
modprobe ath9k
rfkill unblock all
ifconfig wlan0 up
Hardware is an HP G60-468CA.

This worked perfect, thank you!

thank you!
this solved my problem,

Worked! Thank you!

Thank you! This worked very well.

Install the asus_laptop module and it should fix everything. Worked for me on UL20FT.

Hello, I tried all these commands and still doesn't work...

rmmod ath9k
rmmod ath9k_common
rmmod ath9k_hw
rmmod ath
rmmod mac80211
rmmod cfg80211
rfkill block wifi
modprobe ath9k
rfkill unblock all
ifconfig wlan0 up.... it said SIOCSIFFLAGS: Unknown error 132.
rfkill list...... Hardware: yes Software: no
What can I do now?
It's started when I stop my usb drive...

Problem:

#rfkill list

0 phy0: Wireless LAN
Soft blocked: no
Hard blocked: yes

After put my laptop apart and switch out a different wireless card, it still didn't work. I looked around and found that I accident turned off the wifi switch on the side even though the wifi light is on. There are two ways to turn the hardware wifi on and off. One is through the Fn+F2 on ASUS laptop. The other switch is on the left side of the laptop on ASUS laptop.

I type command:

rfkill list

0 phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
________________________________________________

rfkill list

0 phy0: Wireless LAN
Soft blocked: yes
Hard blocked: no

Just follow the top commands and you'll be fine.
rmmod ath9k
rmmod ath9k_common
rmmod ath9k_hw
rmmod ath
rmmod mac80211
rmmod cfg80211
rfkill block wifi
modprobe ath9k
rfkill unblock all
ifconfig wlan0 up or ifconfig wlan1 up

Now everything is working normally again. :)))

I'm glad you sorted that all out! =D Thanks for sharing your hints and tips.

hi all
I get the same problem as chuck, but i use backtrack 5 in usb, as i know, using portable backtrack can use wireless card, i don't need to buy usb wireless, when i tried to up wlan 0, i always get error
siocsifflags: unknow error 132. please help me to fix this problem

yesss :D it worked finally i searched all the google and this worked thanx

if you have a laptop and your laptop has a button for enable/disable wifi, and you have pressed the button so that the wifi is off IT GIVES THE SAME ERROR!!!
SIOCSIFFLAGS: Unknown error 132.
Just press it again and everything will run as it should be, dont waste 6 hours on writing scripts, editing config files and etc. like I did :S

Thanks..its works