Installing Broadcom Wireless Drivers for ubuntu 15.04 [duplicate]

  1. Add restricted component repository

    sudo add-apt-repository restricted
    
  2. Update packages list

    sudo apt-get update
    
  3. Confirm that you have kernel headers installed and updated

    sudo apt-get install linux-generic
    
  4. Then install it again

    sudo apt-get install bcmwl-kernel-source