@Flaviup Check your M4s, if by any chance one of them is hardware V4. For that hardware, firmware beta code with scheduled reboot is available. If not, another option is to put Main Deco on Smart...

@ratelg SmartDHCP feature is only avalable for Deco mesh running in Access Point mode. In its default, router mode, Main Deco will always run DHCP service.

@tpgediminui Try Test Internet speed from Deco app, not from More/Deco Lab. It is not available when X50 is Main Deco, but when you bring P7 back as your Main Deco, you should see this option in Deco...

@tpgediminui What is the speed of your Internet connection, provided by your ISP? That info should help to figure what Deco models can work for you. Also, in your house, are floors made of wood or...

@tpgediminui Deco X50 is not tri-band. For Internet speeds under 500Mbps Deco X50s make little difference comparing with what you had before. I would recommend returning set of X50s for a refund....

@Turmanser This should work, but adding P9 which is older model may disable features present in Deco mesh consisting of X55s only. For example, "connection preference" feature will be unavailable if...