[ubuntu-in] 12.4 doesnt detect wifi networks

[Niam Computech]

On 7/7/2012 2:06 PM, Aditya Muley wrote:
> unfortunately i connot connet through ethernet either as i do not
> possess an ethernet connection

How are you replying to us on this mailing list?

Without internet you won't be able to download newer packages (or 
drivers) after an upgrade thus you won't be able to resolve this issue.
I suggest is to take your Laptop to some computer shop and ask them to 
plug in an ethernet cable from their modem/router so that you can have 
internet access. After that follow as below :-

In a terminal type the following command [don't write 'terminal>']
terminal> sudo apt-get purge bcmwl-kernel-source

then
terminal> sudo apt-get install bcmwl-kernel-source

This will then rebuild your driver.

Let us know how you get on

You can either restart your pc or if this is a pain type the following 
commands in the terminal which will 'switch on' your wireless

terminal> sudo modprobe -r b43 ssb wl

then
terminal> sudo modprobe wl

Now, there is a bug in Ubuntu 12.04 which does NOT enable your broadcom 
wifi drivers on boot thus you need to run above 2 commands everytime you 
start your PC [laptop]

I hope this solves your query.

-- Chetan Mittal
Buy Ubuntu powered PCs from Niam Computech
http://www.niamcomputech.com