@Meckser The operation mode of the mesh (router or AP) applies, indeed, to the whole mesh. Did the main Deco restart after you changed the operation mode? Sometimes the app does not display the...

@Yrref "no wifi signal" and "If I choose the wifi on my phone": how can you choose the wifi if there is no signal? Do you use the same wifi SSID on the router and on the Deco? That could be a source...

@PapiAL Blue light flashing means that the Deco is awaiting to be setup via the Deco app.

@NikSf153 If you tap the image showing the two Deco, it will show more details about each Deco, including the backhaul used. You can obtain more details by taping on each individual Deco (in the...

@DOwnerM Address Reservation is in More / Advanced.

@Vassilis The situation can only improve if your ISP allows higher throughout. Increasing the maximum possible throughput will not cause any degradation of service.