@Sorin81 You Smart TV might not like dual-band: 5GHz and 2.4GHz under same SSID. To verify that, disable 5GHz on your Main network. If Smart TV connection is now stable, the workaround would be to...

@Rednax This feature, when available for Satellite Deco, is configured through the app. The process is described here: How to select a preferred signal source on the Deco App I may have good news for...

@tpgediminui One more thing. If you haven't seen this document, check its Q5 and Q6: General Questions about the Powerline or PLC Backhaul Feature of Deco

@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...