I have 3 routers:
1. Router A with ip class 192.168.3.x
2. Router B with ip class 192.168.4.x
3. Router C with ip class 1c2.168.5.x
All routers have separate internet connections and all are wireless.
I need a way or device through which I can connect these three routers in a way to allow LAN access between all the computers connected to the individual routers. Internet access is not required to be shared between routers since all the routers have separate internet service providers. I merely need just LAN access. Any help will be welcome.