Hub offline and unable to connect

A few times my station has gone offline over the last few months and I have difficulty reconnecting. I usually end up having to reset the hub and then action replace the tempest unit routine.
Currently I cannot :-
When rebooting the hub it goes green for about 30 seconds and then goes red.
When I bluetooth in via the app the light goes blue but :-
Cannot connect wifi - times out 326-07
When I action the replace routine it cannot find the tempest unit though it prompts the correct 4 digit number
Is it a hub issue? and therefore just replace the hub (cannot find on shop)
or is it a complete replacement ?

appreciate any tips

Thanks

I had the same problem and I read a forum post here, that a user uninstalled and reinstalled the mobile app and it worked.

I did that and it worked for me too !!!

Have tried that but same thing still.

Cheers

The app uninstall and reinstall work for me as well