Hi, I bought a Deco M4 2 units pack few days ago and while it´s allowing me to reach the "shadow zones" of my apartment, it´s not going as expected in terms of speed. My ISP is providing me with a 600

Hello, I have the following issue. I have a 3pack deco m4 mesh, my internet fiber company speed is 400 megas but when i try to connect using wifi i can not pass 180 megas speed 1) main deco is connect