With 2 WiFi routers in the house, we get pretty good coverage for our wireless devices, however my smartphone seems to disconnect fairly often in my office. Fortunately, my office desktop PC is connected via Ethernet and I just figured out how to turn it into a WiFi hotspot. It uses an older, internal adapter that's a bit on the slow side relative to everywhere else in the house, but at least it seems like a solid connection for my smartphone. Setting this up in Windows 10 required turning on a single switch in settings: Windows Settings > Network & Internet > Mobile hotspot. I simply had to turn on "Share my internet connection with other devices." I didn't even bother changing the network name or password (the password looks strong). Some day, I'll probably look into setting up a WiFi mesh network system. I'm thinking it'll be in conjunction with implementation of the WPA3 security standard.