There are plenty of askubuntu similar issues. (e.g. http://askubuntu.com/questions/139036/ubuntu-12-04-says-wireless-is- disabled-by-hardware-switch) and launchpad answers too.
The wireless shuts down and won't turn on again after the switch in turned on. Proposed solution is to run "rfkill unblock all" from terminal. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager-applet in Ubuntu. https://bugs.launchpad.net/bugs/997900 Title: Wireless is disabled by hardware switch Status in “network-manager-applet” package in Ubuntu: Confirmed Bug description: I've installed Ubuntu 12.04 (Amd64) in my computer. I updated my system today to ensure that i have the latest software. The problem is that I get an error in nm-applet that says "Wireless is disabled by hardware switch", this happened after I used the hardware switch to turn my wi-fi off because i was going to share my smartphone's 3g connection using the usb cable. After this, i turned my computer off, and now that i want to use my wireless i can't, it doesn't matter how many times i restart my computer, it doesn't work. In the terminal, when I try to do an "sudo ifconfig wlan0 up", it shows me an error that says: SIOCSIFFLAGS: Operation not possible due to RF-kill This must be some bug of my wireless card driver, but i don't know which package contains it. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager-applet/+bug/997900/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

