I don't get internet in my room but there's a plug in the wall connected downstairs and I'm currently just plugging in my Ethernet from there directly to my PC. I would also like to have WiFi and not just a connection to my PC for my phone to connect to, currently I am just using my phone's data. I am planing on getting one of those combos of a router and modem like the ones you get from the internet provider then I'm plugging my PC through there, does this affect the speed of my internet or should I just continue doing what I am doing right now? We already have a modem and router combo for the house and I think its one of those that connect even if you have multiple of them, does this mean I can only use those or do I get to chose what router/modem to get?