Hi,
I've got one of these in the bedroom on a quad LNB 2 feeds to the lounge and 1 to the bedroom. On ITV only (all other channels ok) the receiver intermittently drops signal complaining of no signal. (every 20 to 30 seconds) If I dial in another channel it immediately locks with full signal. The lounge feeds are fine. I guess the LNB could be failing on 1 portion and the other feeds are OK?, but I'm not up on how quad LNB's are manufactured and if the other feeds would be affected. I also don't know if ITV has a channel close-by on the same polarization for me to test if it's the tuner. It's Odd. Maybe I'll try a factory reset first? Thought I'd ask in case anyone else has seen this. The box was a refurbished model from Humax direct.