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

i am not able to connect to the wi-fi in my area please help me out how to connect to the wi-fi from the starting. i have recently bought my new laptop DELL VOSTRO 2420. how to connect wi-fi to this???

share|improve this question

First, install the prerequisites by opening a terminal and pasting, one line at a time:

sudo apt-get install linux-headers$(uname -r | grep -Po "\-[a-z].*")
sudo apt-get install build-essential dkms

Please download the appropriate DEB file from Dropbox here:



Open a terminal, and install it with sudo dpkg -i.

Hopefully it works!

Edit: 12.04 now has an updated bcmwl-kernel-source package that reportedly supports BCM43142.

share|improve this answer

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.