@JohanB1971 If you are confident your wired Deco units do use Ethernet for backhaul, I am out of ideas, sorry. The only thing I can suggest is when "waves" are coming - check if Satellite Decos...

@Eddy2007 The answer to "if I add another deco or two in the garage/garden, will they have a good enough signal": it depends. If you have three Deco units at your house, you can test that before...

@JohanB1971 Deco P7 and P9 are powerline capable. Which means, they may use powerline to establish backhaul link. Powerline devices are very sensitive to what happens with electrical wiring at your...

@Mmfo7 Sounds like broken hardware. I would suggest installing WiFi analyzer on smartphone. Then, from the distance of 6 feet take readings of signal strength of "new" M5. Do same for one of "old"...

@LEH Dilog DIP-701 has one Ethernet port. Power off DIP-701. Plug Ethernet cable to that port, other end of that cable goes to any of two Ethernet ports of wireless M9 Plus. Power on DIP-701. That...

@MichelR Main Deco must be connected by Ethernet cable, there is no way around it. The recommended solution, if you plan to keep E4, is to buy single Deco unit which has gigabit Ethernet ports, such...