Siocsifflags:operation not possible due to Rf-kill

Problem Description: Siocsifflags:operation not possible due to Rf-kill
Computer system: Ubuntu12.04-lts

You may encounter this problem when using WiFi in Ubuntu environment: Siocsifflags:operation not possible due to rf-kill. There are articles saying that this is a bug in the Ubuntu system. This bug was originally Ubuntu 10.10 when the time has already appeared, but until now the ubuntu12.04-lts, this problem still exists, this cannot but say is a regret. But unfortunately, a system inevitably has such or such problems. The problem is not scary, the key is to find a way to solve the problem. In view of the online solution to this problem, most of them are in English, many friends see English headache. Well, combined with some of my own experience and some information on the Internet, let's analyze this problem together.

I am having this problem when I use Ubuntu12.04-lts to create an AP for Android phones. As shown below:

What is wrong with this and what is Rf-kill?

Using Ubuntu's own Help documentation, Rf-kill is actually a tool to turn wireless devices on and off. As a result, it is an error to turn on the wireless device (WiFi).

To see the status of the current infinite NIC, we can execute the command rfkill list all--lists the current status of all wireless devices. The results are as follows:

In fact, depending on the state of your wif, the hard blocked value will be yes or No.        You click the WiFi button and execute the Rfkill list all again to confirm the value of the hard blocked. Also, if you are careful, you will find that the value of Soft blocked is always yes and will not change with the value of hard blocked. So we can see that the synchronization between hard blocked and software blocked failed because of some sort of malfunction in the system (we don't go into it in depth). What is the reason for this? Because of the limited level, there is no way to go into the problem with you. But can you recommend "siocsifflags:operation not possible due to Rf-kill"? What we are more concerned with now is how to solve this problem.

Depending on the help documentation that comes with your Ubuntu system, you can use the command Rfkill unblock WiFi to start WiFi. The WiFi will work properly. To confirm, you can perform Rfkill list all to see the results. Then click the WiFi button, then execute the Rfkill list all, compare the results of these two times to see the hard blocked and software blocked coordination.

At this point, you can use ifconfig wlan0 up to start your infinite network card. Let's see if we can.

Reference Documentation:

"Linux wifi:operation not possible due to Rf-kill" http://blog.csdn.net/cat_lover/article/details/7088873

"Siocsifflags:operation not possible due to Rf-kill"? http://askubuntu.com/questions/62166/ Siocsifflags-operation-not-possible-due-to-rf-kill

"[Solved] siocsifflags:operation not possible due to Rf-kill" http://askubuntu.com/questions/62166/ Siocsifflags-operation-not-possible-due-to-rf-kill