@friedeggs Connect Main Deco to Port 1 (LAN1) of BT ONT box and see if Deco can establish connection. If it does, you would not need to do anything else. If BT ONT box has just one Ethernet port,...

Sunshine wrote @blaznim_vole Hi, At present, only Deco M4 V4 has the firmware that adds the function to choose connection preference. Deco M4(V4) 1.1.0Deco M4(V4) 1.1.0. Otherwise, the only...

@RedT25 Yes, you would be able to do that. ------ In regard to your choice of Deco model. I can find at least two Deco models under AC1200: Deco E4 and Deco M4. There might be Deco M5, too. If you...

@Iwao This may sound silly, but are you sure this "network client" connects to Deco mesh and not somewhere else? If it connects by WiFi, you should check that. --------------- This is just a theory,...

JohnJohn25 wrote Thanks for the feedback, but my router does not allow me to change my DNS server. It's blocked. Is there other way I can do this on the Deco? @JohnJohn25 Only by switching Deco mesh...

@yusufbogatepe In your case, this may help: Deco S7 1.5.0 Supports Connection Preference, IOT Network, WPA3 and More