@Alexandre. Just thought I'd give a quick update on this. All works fine until rebooting the main Deco. After a reboot, one satellite will fall back to wifi backhaul. Pulling the ethernet cable from...

@Alexandre. Hi Alexandre Just wanted to say thanks for your help. It's been a few days now and since changing the cable, it's been totally stable. Strange that the shortest and newest cable was the...

@Alexandre. Thanks again for your help. Still working now, so fingers crossed. John

@Alexandre. 2.5Gbps from Virgin hub to 2.5 port on main deco, then 1Gbps from main Deco to switch is as it is now so ok there. Currently running with different cable (Cat 5e) from main deco to switch...

@Alexandre. Thank you for this. It makes sense. The cable from main deco to switch is actually new Cat 6 but I will swap it out and see if it makes a difference. The cables to the satellites are...

@Alexandre.As requested, map seems to be as you said. All back up and running when reconnected.