@kylems I suggest reading this: https://community.tp-link.com/us/home/kb/detail/412694 The isolation is always bidirectional.

@Ravish Where is the main Deco? Does the satellite Deco have a strong backhaul connection with the main Deco? Do you have a strong wifi connection between a device from the first floor to the Deco in...

@GR1 If you want to have a single switch, you could perhaps use a TL-SG2428P. You could also use several smaller switches.

@DanJones I am not aware that the X55 Pro would support multiple ISP. You can certainly use a X55 Pro as the main Deco, and X55 as satellite Decos.

@RedBullet You can change the operation mode of the Deco mesh from "Router" to "Access Point", and the Deco mesh will run "as a bridge". When the Deco runs in AP mode, I believe the IOT network...

@ethereum-dad Is your Deco mesh running in Router or in AP mode? If your modem acts as a router (DHCP, NAT), you could perhaps run your Deco in AP mode, and see if it helps. Do you mean that you...