Moosehead - I am assuming that you have a Network Cable run between the basement & the first floor, hopefully 2 of them. It should be no problem to move your router to the first floor, you would just need two cables connected to the Router, one from the Cable Modem and one to an Ethernet Switch back in the basement. Just like now the cable modem would connect to the router, but the router would connect to a switch back downstairs where all other devices would connect to the switch. Hope this helps a bit, still waking up need more coffee!