Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Sometimes I clicked this network button:

Why it doesn't work (just like I haven't clicked it)?

When it failed, only when I reboot,it works again.

Sometimes it failed again.

What could I do?

I use ubuntu 11.04 64 bits.

share|improve this question
up vote 1 down vote accepted

Try this when it doesn't work - sudo service network-manager restart . That will restart the network-manager applet.

share|improve this answer

If the above does not work then you can try this:

sudo modprobe -rfv ath9k
sudo rfkill unblock all
sudo modprobe -v ath9k

which a temporary solution. It will work until you reboot. For more details and a permanent solution:

share|improve this answer
can you please provide details of the "permanent solution"? – amc Jul 19 '13 at 6:34

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.