Dell WiFi not working in 12.10

[ashish811]

My Dell Inspiron 3421 came pre-installed with Ubuntu 12.04 LTS.
Everything was working including WiFi and Bluetooth.
Then I made a clean install of Ubuntu 12.10 64bit version.
And to my surprise, WiFi was not working. However Bluetooth was working.

Network properties shows the device as 'UNCLAIMED'. And I can't even enable it using 'eth1 up' command.
I searched through the forums and tried few tricks which were marked as SOLVED, but they didn't work for me.

Here are details of my WiFi device from a screenshot in Windows7

Device: Dell Wireless 1704 802.11b/g/n (2.4GHz)
Manufacturer: Broadcom

This system is of my daily use and really need the WiFi to work. Please help me with solutions.

[chili555]

What is the exact identity of your Broadcom? Run this terminal command and pick out the Broadcom wireless.

lspci -nn

Post the result here.

[ashish811]

Network controller [0280]: Broadcom Corporation BCM43142 802.11b/g/n [14e4:4365] (rev 01)

[chili555]

Please see: http://askubuntu.com/questions/25925.../259264#259264

[ashish811]

thats why I love Ubuntu and use it since version 8.04 .....
that worked flawlessly.
Thanks chili555

[chili555]

thats why I love Ubuntu and use it since version 8.04 .....
that worked flawlessly.
Thanks chili555

Can I get a Solved? If so, please edit the title of your thread and add [SOLVED] at the beginning.

Glad it's working.

For the benefit of all you over-eager searchers, my solution is for this only:

Broadcom Corporation BCM43142 802.11b/g/n [14e4:4365]

If yours is not the same device, then keep searching.

[ashish811]

did that

[ashish811]

this fix is working but everytime I restart my system, I need to execute this command in the terminal to start WiFi and get it working: " sudo modprobe wl "
any fix for this ??

[chili555]

this fix is working but everytime I restart my system, I need to execute this command in the terminal to start WiFi and get it working: " sudo modprobe wl "
any fix for this ??

Let's get wl to load automatically on boot; from a terminal:

sudo su
echo wl >> /etc/modules
exit

You should be all set.

[ashish811]

yup did that and its fine now ...
further to add, my Touchpad went laggy after very 1st restart of doing the WiFi fix install and went inactive in 2nd restart.
However I run the command to enable touchpad and its working fine since then.
Not sure what caused that conflict though