Moved home, superhub connectivity lights go out

Good morning,

Firstly, we usually have our superhub in modem mode, but for the purposes of our move it has been reset to router mode. 

Our activation was a day later than expected, but for some reason the hub boots up and shows the WiFi light as green, the connectivity lights as green (after the initial flashing whilst connecting) and then after a few minutes both go out (totally blank). The power light stays on as white (although it’s begun to dim a little with age and now looks closer to a yellow or orange). The device has been left on all night with no change this morning.

Plugging an Ethernet cable into the hub lights up the Ethernet port light for a bit before it goes out.

There is a WiFi network being broadcast by the hub, but the default password and our custom one do not allow us to connect, it simply says connection failed from a phone when trying. We have tried multiple devices.

Support says the hub is recognised at their side, and they can’t see any issues at all. But they overall weren’t too helpful with diagnosis or troubleshooting. 

Does anybody have other ideas as to what could be the problem or a solution? I attach a photo of the front and rear of the hub for reference.