Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free.

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

My wifi is now disabled after entering a terminal command found on this site that was suggested as a solution to a slow wifi on 12.04.

Command was

sudo modprobe -r iwlwifi && sudo modprobe iwlwifi 11n_disable=1

How can I undo this modification?

share|improve this question
up vote 2 down vote accepted

Using this command you unloaded the iwlwifi module and then reloaded it with a particular parameter. In this case the module is your wireless card's driver and guessing by the parameter's name you just disabled 802.11n support in the driver. Now try unloading it again and then reloading it without the option :

sudo modprobe -r iwlwifi && sudo modprobe iwlwifi

share|improve this answer
I just booted back up and tried your string and wifi is working. Thank you – Helverix Nov 22 '13 at 2:03

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.