@carmon When you have single Deco unit it is called Main Deco in TP-Link terminology. Main Deco must have wired (Ethernet) connection to modem/router. What you want is not possible to achieve with...

@KevinComo Right, and I am using same type of switch, just 8-ports: TL-SG108S-M2. Works just fine with my Deco X50-POE. In fact, my Deco didn't like gigabit switch I had previously with my M5/M9 Plus...

@DoH I suggest you try what I proposed, for troubleshooting purposes. If my proposed configuration works, we can discuss next steps. If it does not work either, that may point at issue with Ethernet...

@DoH Change order of Deco to the following and see if that fixes the issue: Deco 1 (Main) – BE25 Deco 2 – BE25 (Ethernet to Deco 1) Deco 3 – M9 Plus (Ethernet to Deco 2) Deco 4 – M5 (Ethernet to Deco...

@KevinComo "My issue is that no matter what I try (different ports/cables etc.) there is no way I can get past the first step, which is to have the BE25s communicate over ethernet backhaul through...

@wolf73 wolf73 wrote @Alexandre. Ok, How do i reserve ip addresses if the router not respect the MAC address reservation? So far there is no proof it does not. Supported process for IP address...