I have recently purchased Deco M9 Plus (2 pack). I have set them up as router (not accesspoint) mode. The default functionalities are working good so far. But when I am trying to toggle some options...

Yes, just purchased the Deco M9 Plus and packing now for return. The basic features are missing. It is really shameful. I paid so much for the router. The bandwidth control is there for a 15$ router....