Adding a second router to an existing home network?

[Terminal_Boy]

I’m helping a neighbour extend their home network with a second router which will both provide WiFi coverage in the rear of the house and feeding two external wide area APs (TP-Link CPEs).

Have no problems with the wiring, SSID configurations and setting up the CPEs, but I’m not entirely
sure how to set the IP range/DNS/DCHP in the second router to avoid IP conflicts etc.

Have read several guides on the internet, but they all glossed over the IP config part as far as I could see.

Any help / instructions in plain English that hardware engineers can understand would be most appreciate.

 

[Terminal_Boy]

I was going to use the second router as an AP and to give LAN connection points for the 2 CPEs.

It sounds like I need to run Cat5 from the Orange Livebox (think garlic scented Virgin Superhub) to a switch at the other end of the loft and feed a dump AP and the 2 CPEs from it.

Unless I’ve grasped the wrong end of the stick. Again.

 

[Terminal_Boy]

Their current network is a SuperHub equivalent which provides wifi coverage in the living room and hallway.

The bedrooms that my neighbours want wifi coverage in is at the end of this 50metre long hallway. Because of the thick stone interior walls and French wiring regs, the only place to fit an access point is in the loft above these bedrooms.

My new plan is to run Cat5 from the Superhub up into the loft and along to where I need the AP which will be fed from a 4 port switch that will also feed the high power external APs to serve the pool area and an outbuilding (TP-link CPEs).

I had only planned to use a second router as the loft AP as I have a spare one and I was looking to use to save my neighbours a few Euros.

 

[Terminal_Boy]

Thanks to all for their advice.