A couple days after Ubuntu 10.10 installed on my HP CQ60-116TX, wireless network suddenly stopped working, it is said that also happened after upgrading to Ubuntu 10.10. Fortunately, I got the problem fixed after a few minutes’ searching. And thanks to yangyangyang009 who posted the solution.

Reason: In the update to Ubuntu 10.10, rfkill tool blocked the wireless network.

Solution:

Run the command and it outputs if your wireless network blocked or not.

rfkill list

0: hp-wifi: Wireless LAN
Soft blocked: yes
Hard blocked: yes

1: phy0: Wireless LAN
Soft blocked: yes
Hard blocked: yes

The previous outputs shows that wlan0 and wlan1 are both soft blocked and hard blocked.

So now we are going to unblock Wireless Lan 0 and Wireless Lan 1, just run the command:

rfkill unblock all

or:

rfkill unblock <identifier>

the identifier is the number in the name of the wireless card (in this case “0″ & “1″).

In addition, try Fn+F2 to fix the hard blocked problem if previous doesn’t work.