I have two available internet sources - one of which is fast but goes out occasionally while the other is reliable but slow. Basically my question is, am I able to get a network card and have both available internets to switch from (when one goes out?) And how should I do it, I already have a gigabit port in my z170a so, should I just buy a single port network card? Or should I get a two port card so I can have both connections running into the same place?