Comment 2 for bug 703280

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 571392 , so it is being marked as such.

The fix has been released in natty as mentioned in #9 comment of bug 571392.Download and install bcmwl-kernel-source package(version 5.100.82.38+bdcom-0ubuntu2) using this link:
http://packages.ubuntu.com/natty/i386/bcmwl-kernel-source/download

Please post your results back.