MoCA disabled

Starting about an hour ago, the MoCA automatically disabled itself (and it does this twice a day usually, but I can ordinarily go to "Gateway" and enable it manually). This is for the "cable" service on my TV. Now it will not stay "enabled" no matter how many times I try. It keeps automatically kicking back to "disabled." Consequently, the cable TV service I pay so much for every month is unavailable. What is going on, and how do I fix it?

Thanks,