Seph, just wondering, if you are on LLU have you rang o2 and asked them to try your line on a lower SNR? If you log on to your router and see what your downstream snr is it will give you an idea if it can be reduced. I think they are set at 6/9/12/15, if they are anything like TT then they set you at 12 or 15 and if you have a stable line they can reduce it at their end to give you more speed. I've looked on the o2 forums and a few on there have switched to the netgear with dgteam firmware, I'll pm you the settings you will need when Ive posted it
Sort of back on topic, Ive not had any box reboots since the box was swapped out for the samsung