I have a Deco X50-5G (as a fibre router with SIM card back-up) with a couple of X50 satellites. Recently some devices have been going offline - although they are still listed as connected with strong signals in the Deco app and they have IP addresses assigned.

Rebooting the Deco doesn’t make them come back online. Initially I thought it was a problem with the device (for example it was a Nest thermostat that first went offline) but now it’s also happening with an Apple HomePod and a Tapo doorbell so I’m starting to suspect the Deco.

In the Deco app I can still force them to use the 2.4Ghz or 5Ghz band and which Deco it connects to but nothing works. I have been able to ping them using WiFi tools but they are still inaccessible. The Deco reboots every day but that doesn’t seem to do anything.

I am not physically at the property so am unable to reboot the devices which are connected-but-not so any suggestions would be greatly appreciated.