@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.

@OlOlgers I have replaced all my Deco M9-Plus with Deco X50-PoE. Similar form factor, can be wall and ceiling mounted. You can buy single Deco X50-PoE units, which means you can keep adding them as...