@Ek9max Theoretically, the wifi coverage area of Deco M9 plus is larger than Deco M5. you can read the overview information. (Note: The actual performance is still related to the actual network...

@Kiwijon Please connect the Deco to the old router to get internet and configure it as dynamic IP; once it works well, you can use the Deco app to manage it and change the internet connection type...

@jaaps123 Theoretically, it has nothing to do with the Deco when it works as an access point. It can be regarded as an ethernet cable in that case. Could you please connect the Deco M4 to the main...

@alexwazan What is the speed you can get from the 5Ghz of the main router with the adapter? What about other devices? With your computer connected to the wifi, please check the wireless negotiation...

@JanLunteren With 2 separate powerline networks connected to the main router, the tpPLC utility will detect one of them at once randomly; To be honest, most customers use the powerline adapter...

@Michiel Sent you another one, it should be working properly. Good day.