Working from one end of the signal chain to the other:
* the broadcast is no more (Astra 28.2 has gone away, the uplink isn’t working)
* there’s something stopping your box see the signal (e.g. rain fade, trees, etc)
* your dish is wonky, there’s something awry with the LNB
* your cabling to the TV is borked
* the TV receivers are somehow damaged
* there’s some sort of software fault stopping the TV decoding or playing the content
The first two we can probably discount, assuming there’s nothing in front of your dish that wasn’t there before when things were working.
Given that you mentioned the wild weather I’d be concentrating on the stuff that’s outside. Assuming there hasn’t been a software update for the TV, that’s probably the most likely source of the problem I’d guess.
If you’ve got a signal-strength type page on the TV you might be able to play with parameters to see exactly what is working and what is not, and work from there?