Problem with TNT Sat

When I came home recently after a month in England I found I had lost my satellite signal and could not watch French TV easily. I can do it via the internet but it is not instantaneous and swapping channels is clunky. Where I live there is no terrestrial signal available due to the mountains being in the way.

This could be because the LNB has failed. Also will my receiver work if the TNT card has expired, I have a spare receiver and it changing it makes no difference. Any thoughts welcomed.

If the TNT sat card has expired you need to replace it to use the decoder. Not expensive.