Setting up Wireless Network in Ubuntu 12.04 Precise

After installed Ubuntu 12.04 on my brand-new laptop, one of the confusing things is to setup the wireless network connection. This simple tutorial will show you how to

(Optional) First of all, I strongly recommend installing wicd to replace the default gnome network manager. wicd has a clean and easy-to-use interface, I like it much more than gnome-network-manager.
To install wicd, hit Ctrl+Alt+T to launch a terminal, install wicd via:

sudo apt-get install wicd

Then remove gnome-network-manager:

sudo apt-get remove network-manager

This is a screenshot of wicd network manager:

In Regular Way:

Normal way to setup wireless network in Ubuntu is first to connect wired network, then:

  • 1. Launch Additional Drivers from the dash (or from system settings menu).

  • 2. Active available wireless driver, and finally connect to wireless network at next boot.

For B43 wireless card:

If the normal way doesn’t work and you get the b43 wireless card, check it using this command:

sudo lshw -C network

It outputs something like this (bcm4313):

In this case:

  • Remove bcmwl-kernel-source and any wireless driver in Additional Drivers.
    sudo apt-get remove bcmwl-kernel-source
  • Install this one:
    sudo apt-get install b43-fwcutter firmware-b43-installer

Then restart Ubuntu and try to connect to wireless network!

NOTE: In router settings set the wireless channel under 12. In my case, I can’t connect to wireless network until I changed wireless channel to lower than 12.

Leave a Reply

Your email address will not be published. Required fields are marked *