I'm running 12.04 too, with kernel Linux 3.2.0-37 and the same version of bcmwl. I was having issues with ARP multicast- possibly related. See my bugreport here: https://bugs.launchpad.net/ubuntu/+source/bcmwl/+bug/1111956
I'm running 12.04 too, with kernel Linux 3.2.0-37 and the same version of bcmwl. I was having issues with ARP multicast- possibly related. See my bugreport here: https:/ /bugs.launchpad .net/ubuntu/ +source/ bcmwl/+ bug/1111956