For the past couple of months my box has been freezing and crashing regularly. It freezes everyone few minutes when watching on demand or recordings and will crash every couple of hours. When this occurs all the lights on the box will flash and it will take around five minutes to reboot. This problem does not occur as much when watching live TV but it is disrupting my recordings. I have changed the TV and wires since the problem started so it is definitely the box. Any advice?