@David-TP Yes, all Decos connect wirelessly. I cannot use Ethernet Backhaul to the outdoor Deco (who can?). I tried utilising Powerline devices but they kept dropping in and out and causing their own...

One last go at trying to get my problems resolved. System comprises: 1 x X60 as Main Deco plus a further: 1 x X60 V1.2.9 build 20240722 3 x X55 V1.5.5 build 20240816 1 x X50-Outdoor V1.2.5 build...

The usual deafening silence.

@David-TP Does this solve the other issue where the app shows the majority of devices in the "Offline Clients" list? It seems to affect non TP-Link devices. Edit: My X50-Outdoor upgraded via the IP...

@Hasayeret Yes. Search for the X50-Outdoor. https://www.tp-link.com/uk/home-networking/deco/deco-x50-outdoor/

@Sunshine Thank you. Yes they appear to be working okay so I will leave it as-is.