0000 displayed on front of box

For the last week, every morning I have to restart the cable box because it is stuck on "pick a language screen" and displays 0000 where the time usually is. The remote works but its like the box is not receiving the signal. After resetting the box, it will work. Sometimes it will last a few hours to half a day. Then it happens again. Tried costumer service 2 times and they never even answer the question. (Its like they have zero clue what I'm asking). The box is going on 5 years old. Is it just a matter of going and getting a new box? Its beyond ridiculous that xfinity is of zero help. Any suggestions are greatly appreciated.