Home routers are definitely not designed to serve 40 users. Average family has 4 users. It can be a family with more kids, grand parents living together, or few families sharing the same house, but rarely 40 in a single home. If there are so many people, more space is needed. More space means single AIO router can't cover the space anyway. Some manufacturers (like Netgear) have up to 32 devices per radio in user manuals. Apparently number of users is a problem for AIO routers, unless someone wants to test the equipment beyond its design capabilities.