Hi Alan, welcome to the forum.
Could you please be a little more specific with your problem, ie, does the box power down completely? does it go into standby mode? does it power down then reboot? does it do this only when the box is recording? does it only do this at certain times of the day? how often does it do this? As it has already been said, if this is your second box then it is more likely your operating environment as this is not a issue I have come across before. My box reboots itself at random times, but not that often so I can live with it.
You will notice that if you point your remote away from the box it will still work, I can even go out of the room and it will work!!! So it could be picking up a rouge signal from somewhere, even outside the room/house. Has your neighbour got a Humax box? it may sound stupid, but you cant rule it out. I remember having problems once with my TV, it used to suddenly throw a hissy fit, then I found out it was my next door neighbour, he had a new automatic garage door fitted and he would operate the remote coming up his drive, we had a shared drive and my lounge window was in range of his remote. Weird but true.
I am not an expert here, but there are others that are and can probably help if you give more specific information.
