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Just a quick update, I got in contact with optus and they decided to replace my fetch box, I got it all connected and the issue I was having with 7flix channel has now gone away but celebrations was short the problem I got after that was the EPG was freezing and couldn't select a different channel from there unless I turned the box off completely, now with the latest update (Bellinger) everything is running smoothly again and hopefully it will stay that way, thanks everyone for your replies 👍