My friend has a router in the basement where his computer is. He wants to get a roku or some sort of device which can stream Netflix in his upstairs bedroom 2 floors up. I am assuming the wireless signal will not be strong enough from the basement to accomplish this. What is his best option to accomplish this? Wifi extender on the second floor? Try to move the router to the second floor for full coverage and connect the downstairs computer and upstairs Roku by wifi adapter? Moca bridge? Powerline adapter?