Hey all, we are soon moving into a new town home. The contractors wired the 1st floor where the modem with go and also for TV. They didn't install any Ethernet jacks in the rooms because it causes "signal interference". My question is.. What is the best option to get wireless/wired connectivity to the second floor and third floor rooms? Would using a WiFi extender do the best job? I want minimal bandwidth / network loss. Thanks!