My PC is upstairs and my router/modem are downstairs. I've been using a WiFi card for around a year and I'm sick of it. I only get around 5mbps. I'm pretty sure its my plan, but say i was to use Ethernet as apposed to WiFi, would I still get 5mbps or is Ethernet way faster? And how would I get it upstairs? I have no Ethernet ports upstairs so could I run a 100ft Ethernet up there or what would be the fastest most reliable internet in my case. And is there a way to get a modem/router up here and down there that runs on the same plan?