@BernardoH You can try to update the firmware once again via the web UI and verify whether it works. And what is the current led status of the slave Deco which stopped working after firmware upgrade?

@Tik Thanks for your reply. And yes, the current firmware for Deco M5 is more mature than Deco M9 plus V2. Our engineers are working on it. The firmware for M9 plus v2 will be released with the new...

@MarkPayne What about the current network diagram? And what is the operating system of your computer which is used to access the NAS? Good day.

@StefanJ I see, thanks for your reply. While I'm afraid that there is not much we can do cause the devices does not support Mesh feature now. FYI, right now we have two mesh network systems, one is...

@IngoKunzi Hello, the Deco P9 supports powerline backhaul, while it cannot pair with other powerline adapters. They are two different products. They cannot build up a mesh network together. While you...

@nickioan Thanks for your valued reply, glad to hear that you figured it out. And the electrical appliance may affect the performance of the powerline adapter due to potential interference, we can...