If there's an issue with your dish then no amount of resetting will restore it.
Start here: https://www.sky.com/help/articles/sky-tv-no-satellite-signal
But you'll probably need a visit to have the dish checked. I presume you have your own dish?
If there is a signal issue then recordings and apps will eventually stop working too.
I am just another Sky customer and my views are my own even if you don't like the answers
