Keep IPTV channels alive?

Hi there.
I have my 2s set up using suls and all is good. Only one minor issue. Sometimes my channels freeze and don't come back without some intervention.
I can resolve this by pressing channel up and channel down as a sort of quick refresh and it will start playing again fine.
I was just wondering if there is any automated solution for this that will help keep IPTV channels alive?
Wooshbuild 5 & Suls scripts.
Thank you.
 
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