@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...

@Shrops There is also M9 Plus, it is WiFi5 and supports connection preference. There is not much benefit of getting X20s, especially if your Internet link speed is 500Mbps or under. If you have...

@davdav You have to connect Ethernet cable to Main Deco, this is correct. If there are no issues with Ethernet cable, as soon as both top floor Satellite Deco and Main Deco are connected through that...

@davdav With each new iteration of WiFi standard they deliver faster speeds but for shorter distances, and more sensitive to obstacles such as walls and ceilings. Which means, replacing WiFi5 mesh...

@Salztech I know one common case when that happens: when static IP address is configured on device. If you have configured WD mycloud with static IP address, change that to dynamic. Then, use IP...