@David-TP " Sorry, and I might have misunderstood your initial post. Wifi devices always connect to Deco no problem Wired-LAn NON-Windows devices are always visible/accessible from mobile devices But...

@David-TP Hi, May I know the model number of the 2*( unmanaged ) Gigabit hubs ? Tp-link TLSG108S connected to X20 & then connected to the SG108S , a Netgear GS205v2 "also this is the same on all 3...

I have both Wifi Devices connected directly to the X20, and multiple wired-LAN devices via 2 ( unmanaged ) Gigabit hubs. I have multiple reserved IPs for various devices on the LAN section Wifi...