@Jeff1005 One more thing. Deco XE75 Pro units have one 2.5Gbps Ethernet port and two gigabit ports. There is also similar model XE75 (no "Pro" in model name) with same specs but all three Ethernet...

@Shrops Check TP-Link UK Support link for M9 Plus hardware 2.2: https://www.tp-link.com/uk/support/download/deco-m9-plus/v2.20/#Firmware It shows latest firmware 1.6.2 for hardware 2.2. Firmware...

@Jeff1005 All Deco units added to Deco mesh in Deco app will run as a single WiFi mesh. They all will follow same configuration settings you made, such as SSID/password. You do not need to configure...

@Shrops In general, WiFi6 is faster than WiFi5, but on shorter distance. Which means, for range one should compare WiFi5 signal from X20 vs. M5, or even 2.4GHz. WiFi 6 will not reach farther than...

@mattyB If you could get Deco M9 Plus model, that would be most optimal addition to your set of M5s. If not, any other Deco models can do, but you may lose some features you have in M5 now. As I...

@Jeff1005 I have three Deco units directly connected to the router, if that helps. Yes, you can definitely do that with Deco mesh running in AP mode. See this document: General questions about...