I think that's what I want, but I can't seem to figure out the right Google term. My problem is that we have acquired a number of wi-fi devices and have friends come by with wi-fi devices and there is insufficient reception in our living room. Even a wi-fi booster was unable to help. Because I have a wired star topology, I don't want to move the router to the living room. (I'd have to add another ethernet cable back to the attic to do that anyway.) I could use two routers, but then I have two subnets and my printer and LAN storage would be on one or the other subnet.
I have a hub in the living room now and all the wired devices are using the router's dhcp to get connected. Is there such a thing as a hub that does wi-fi, too? What do you call such a thing? It isn't "wi-fi hub" and there is no obvious (to me) configuration of my spare routers that wind up getting them to act like such a beast.
I hope this makes sense :)