eurovox exsl 1000 sl channel break up

hi im getting channel break up and no signal message on all channel on freq 459.00 all the rest are fine.im in the leicester area anyone else having this trouble or any ideas as to what it could be,this also happened a few weeks ago but sorted itself out but now its back again,i havent done a update as i tried this last time and resulted in losing these channels alltogether plus it messes up my favorites list,,,,thanks

 

ps, if switch the box off then on at the mains these channels are fine for around 20/30 secs

 

problem resolved itself