I have a modem/router with a wired connection to my desktop downstairs in my house, and I want to use an old machine I have lying around as a web browsing computer upstairs. Problem is, it doesn't have wireless capabilities and there's no way I can wire it to the modem/router. I have an old Netgear WNDR4500 I want to use as a bridge (correct term? idk) to connect the computer to the internet. Is this possible, and if it is, how difficult will it be to set up?