Thank you Asfand Qazi - I was going round in circles until I saw your post. These steps fixed the issue for me:
remove all backports using apt-get sudo apt-get install --reinstall bcmwl-kernel-source modprobe -r lib80211 modprobe wl
Thank you Asfand Qazi - I was going round in circles until I saw your post. These steps fixed the issue for me:
remove all backports using apt-get
sudo apt-get install --reinstall bcmwl-kernel-source
modprobe -r lib80211
modprobe wl