Just download the natty package from : http://packages.ubuntu.com/natty/amd64/bcmwl-kernel-source/download
and install it.This should solve your problem. For more information check this bug and read Eshwar Andhavarapu comment. https://bugs.launchpad.net/ubuntu/+source/bcmwl/+bug/700176
After installation please post your result in this bug report.
Just download the natty package from : packages. ubuntu. com/natty/ amd64/bcmwl- kernel- source/ download
http://
and install it.This should solve your problem. For more information check this bug and read Eshwar Andhavarapu comment. /bugs.launchpad .net/ubuntu/ +source/ bcmwl/+ bug/700176
https:/
After installation please post your result in this bug report.