Roamio rebooting over and over

Verizon FIOS. Right at 12 midnight my roamio started displaying the cable card access screen saying there was no service. Now the box just keeps rebooting showing the same text based cable card screen for a split second. No intro movie, just a spinning circle and then eventually into another reboot. Nothing changed in this environment for a long time. Phone and Internet both work. No reports of fios outages. Oh, payments current.

Ideas?

Roveer