For now, I have my Fiber modem as main router and 3 deco M5 as access point to wifi connections. I had to disable deco M5 as main router cause I can't do anything with ipv6 enabled on it, lose connect

bonjour ma sœur a décide de passer a la fibre elle était chez free pour passer chez orange fibre le boitier deco M4 etait connecté a la freebox via port ethernet elle sera branche a la livebox orange