@BenJam I have the X55 setup. I've received the notifications on the app and i'm already running the Deco X55(US)_V1.6_1.4.1 Build 20231122 firmware for almost a week. Nothing wrong so far.

@alvaromanuel verify if the security is WPA2/WPA3, change to WPA2 only. (solved some issues for me with some IoT devices)

Fix the auto sensing or let the hardware works by itself without WAN or Internet.