Don’t remember searching much on Ubuntu’s wiki but I found this from this:
(You may need to install
synapticor your favorite package manager.)
- Uninstall the
bcmwl-kernel-sourcepackage by issuing the following command on a terminal:sudo apt-get purge bcmwl-kernel-source
- Make sure that the
firmware-b43-installerand theb43-fwcutterpackages are installed (of course you will need internet by others means):sudo apt-get install firmware-b43-installer b43-fwcutter
I think the first answer on that page I’ve linked to is a very good read and can probably help out just as well. The documentation is being updated over time it looks like, so I do recommend taking a look.
If what I’ve copy/pasted doesn’t work, click the link above or visit this page to see the full answer:
Good luck!