Pixelation

I am getting pixelation on seemingly all channels and on all tv's in my house. An error message coded as XRE 03062 also appears. The ONLY thing that works to restore the picture is removing and reinserting the HDMI cable from the cable box. After that we might be okay for a second or minute or a day and we go through the same thing again. And of course it happens when we don't want it to! Any suggestions? TIA