PC upstairs with no internet
I have put a PC that is about 3 years old upstairs. I have a PC downstairs in my bedroom that is tied in with the Comcast/Xfinity internet. All of my cable/internet components are right beside the downstairs computer.
We see a place to screw in a cable for the TV cable upstairs but I need to know EXACTLY (lol) what to buy to get the PC upstairs to work with my existing internet downstairs. Do I just go and buy a router from Best Buy? I don't even know how to install something like that but I'm guessing I can hire someone to do it. Is there anything that I should know in order to get that computer upstairs up and running with internet? Maybe Xfinity will have to do something???
Any help would be appreciated.