Okay so my parents bought me a gaming adapter for my computer a while back and basically what it does is takes the wifi signal from a wireless router and turns it into ethernet. I had my computer hooked up to this for quite a while and then my brother moved his computer into his room which is just across the hall from my room. So i figured I would give him some wifi. I hooked up a unused router to my gaming adapter and then I ran a ethernet cable to his room as well as mine. And it worked!!! So now I can hook up all of my consoles that use ethernet to the internet at the same time!
I hope this helps someone who is in a similar situation.