how do I enable the wifi catcther and what software is needed and how to get lights to turn on the keyboard latitude 6400

I need discrete steps on how to get the wifi catcher to turn on. im not talking about switch on the side. the side switch turns wlan wifi on and off. is there other software I need to install? I see a setting in bios says wifi catcher but still cant get lights to show that catcher is on, is there an issue with this laptop? any help will do.