I have the same problem on my month old Q6F TV. I have been incontact with Samsung and All4 who agree there is a problem and tell me that their technical people are trying to solve it. No-one can tell me when or whether. My contact is senior admin person called Kath so try her. I am disgusted with Samsung - it has totally destroyed my confidence in them and make me wonder whehther to return it and but another make. We have had the smart hub and apps reset three times to no effect. If we resume the next day, we sometimes manage to watch a litle more perhaps one or two advert breaks. Come on Samsung - deal with the problem!
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