@FatBadger The network diagram would certainly help, but here is my recommendation. Configure Deco mesh to run in Access Point mode and you can connect Deco units to your home Ethernet network any...

@GrantG Deco E4 has 100Mbps Ethernet ports. This is what restricting the speed. With Deco E4 as Main Deco you will not get speeds faster than 100Mbps from Deco mesh.

@davidgballester There are two possible workarounds: 1. Check if your TV has Ethernet port. If it does, connect TV to Deco P9 with Ethernet cable. This is the best option. This is what I have done at...

@Spike1985 See this TP-Link FAQ: General questions about Ethernet Backhaul feature on your Deco

@Hudsoncat25 IP reservation feature disappears when Deco mesh configured to run in Access Point mode. See https://community.tp-link.com/en/home/kb/detail/334 If you run Deco mesh in Access Point...

@RamGopi I am a bit late to this conversation, but if you like M5 form factor, check X50-PoE. It should be similar in performance to X20 and X50, but not stick out as much.