Hi there - sorry for the noob question, but I would like to understand the best configurarion method for the following:

I have optical fiber 5gb internet coming in from the street into the ONT. I have a TP-Link TL-SX1008 | 8 Port 10G/Multi-Gig switch that connects the ethernet from the ONT to 7 ethernet ports in different rooms across the house.

Initially, I had the Main Deco (in Router mode) connected to one of these ports with the other units connected over WiFi (no backhaul). This works. However, as soon as I use any of the wired ethernet ports, the Main Deco drops connection and needs a reboot to work. Clearly this is not ideal and possibly expected. 

What would be the best configuration to make it all work together well such that I can have both WiFi and wired connections? ONT > Main Deco > Switch > Decos as Access Points?  Would that still allow me to also use the othwr Ethernet ports wired? Something else?

Thanks so much in advance!