View Full Version : [SOLVED] Wireless Internet Not Working

February 14th, 2012, 11:35 PM
I think I am having a problem with broadcom wireless chip. I have the b43 driver installed.
The wireless wasn't working and then I installed the firmware. It worked until I shut down the computer. When I restarted it, the wireless doesn't work again.

I checked and the driver and firmware are still installed.

Can anyone help me with this?

I am running Ubuntu 11.10.

Bucky Ball
February 14th, 2012, 11:50 PM
Welcome, Texasgirl833. In 'Additional Drivers' is the B43 still enabled?

February 15th, 2012, 06:50 AM
well, are u WiFi card is supported by ubutu to check, first u have to identify the your wifi card/driver of your computer or laptop.
Open the terminal type the following command:
lspci -vvnn | grep 14e4

check the exact model of ur wifi card. Supported models are:
BCM4301 BCM4306/2, BCM4306/3, BCM4311, BCM4312, BCM4318, BCM4320

If u found the wifi model in the list & still have connection problem, then type the following command in terminal:

~$ sudo mount -o loop /host/ubuntu/install/.fuse_hidden0000000400000001 /mnt
~$ cd /mnt/pool/main/b/b43-fwcutter/
~$ sudo apt-get install b43-fwcutter
~$ sudo dpkg -i b43-fwcutter*
~$ cd /mnt/pool/main/p/patch/
~$ sudo apt-get install b43-fwcutter
~$ sudo umount /mnt
Now download the following firmware:
http://downloads.openwrt.org/sources/wl_apsta- and http://mirror2.openwrt.org/sources/broadcom-wl-

copy the downloaded files to the HOME folder & execute the following commands:
~$ tar xfvj broadcom-wl-
~$ sudo b43-fwcutter -w /lib/firmware wl_apsta-
~$ sudo b43-fwcutter --unsupported -w /lib/firmware broadcom-wl-

Now restart ur system. I hope it will solve ur problem.

Virus Removal (http://antivirus.igennie.net/virus-removal.html)

February 15th, 2012, 02:02 PM
What is your card model? I am running on a 4313rev1 and the drivers in the repos don't work for me, the Additional Hardware drivers have very poor performance. Try the Linux STA drivers, follow http://www.broadcom.com/docs/linux_sta/README.txt this guide. Let me know how that works out.

February 15th, 2012, 08:23 PM
Thanks for the help so far. I checked the Additional Drivers, and it doesnt show up at all. I can enable the b43 driver from the terminal with modprobe b43. After enabling it, I checked additional drivers again, and it still wasn't listed, but I was able to connect to the internet.

Ive been looking around at posts with similar problems, and many people suggest "adding the driver to startup", but I am not real clear on how to accomplish this. Any suggestions?? Thanks.

February 15th, 2012, 10:59 PM
If you just need the b43 module to load at start, then insert 'b43' (on its own line. obviously) in /etc/modules

Wild Man
February 16th, 2012, 05:40 AM
Hi, the b43 driver does not show up in additional drivers it sounds like the driver just is not loading on start up so please do:

sudo su
echo b43 >> /etc/modules

February 17th, 2012, 07:16 AM
Thank you so much for all the help! Wireless is working now.

Wild Man
February 17th, 2012, 09:33 AM
Hi, your welcome!