I have extended wirelessly my network to another building (distance about 40 m). I have two routers with FreshTomato 2020.2 firmware. Wireless mode is set to "Access Point + WDS" (N Only/2.4Ghz). Secondary router uses primary router's DHCP and DNS and is also a gateway to Internet...
Access Point + WDS - Communication between devices
Access Point + WDS - Communication between devices