@SrDarkWarrior How did you get it to work, and which firmware are you on? I've got 1.4.0 Build 20200319 Rel. 55255 — and no web UI at all.

@Toppie does the web UI actually work for you with this new firmware? I've just successfully upgraded mine (3x V2) but trying to enter the main Deco's IP address in the browser still doesn't return...

Is there any update on this at all? Seems like I'm having the same issue: the devices connected to my Decos by an ethernet cable (via a switch) work perfectly while devices on Wi-Fi lose the internet...