Modem to replace 2704n or bridge the router

[#1]

Hi 1st time here so excuse my ignorance. I live in an oddly shaped home with very very thick walls and the 2740n doesn’t give me coverage. So I invested in a google nest WiFi plus 1 extender and turned the 2704n WiFi off. Now I have coverage but frequent dropouts on anything that needs streaming. I don’t think I can bridge the router do do I replace with a modem and if so any recommendations? Many thanks

[#2]

You can put 2704n in bridge mode using a config file. https://community.plus.net/t5/Tech-Help-Software-Hardware-etc/Unlocking-the-potential-of-Sagemcom-27...