In my house in the village, I have a wireless modem/router set up. It is set up in the downstairs house. The problem I have is when I am upstairs, I do not get any wireless service. I purchased a second modem/router, but didnt know that you couldnt use two modem routers. Does anyone have any suggestions? Is there anything that I can connect to the upstairs house, that would connect to the downstairs modem/router?