Hello guys, I bought 6 Deco M5 for my whole home. 3 floors. I already installed switches for the downstairs and upstairs. But the problem is that i connecting the main deco as router but i do not know

My house is 1 Dunam \ 1000 Sq with 3 floors. Today I have 6 Unifi AP and Unifi Router. they connected via POE to switches and then to the router I want to change all the wifi system to a new one. Is D