Orbi issue
Hello guys, i hope you all are fine. Guys i have an issue in my home network in short our ISP provides fibre internet what they do is they provide a modem which is connected to fibre it also handles dhcp but it doesn't have wifi and they provide a router orbi rbr50 or nokia beacon 2. My issue is coz of 2 dhcp servers one on modem and one on router is making my network unstable my devices can't see each other i need one network one subnet and all devices to talk to each other. Currently im using orbi rbr50 coz it has better features from nokia beacon 2 the issue is if i turn the router on ap mode it solves most of my problems 1 network every device sees each other but on AP mode orbi is so dumb that i cannot use so many features including controlling which device can use my internet same goes for nokia it also doesn't allow many features on AP mode. I just want one network and control of the devices that use my internet. Coz if i share my password with anyone most of them share them with others without my permission and people use my internet for free. And mac filtering is too much hassle. This is my first time posting so please ignore my mistakes and please ask any questions about the network to understand the situation easily. Thanks i hope someone helps