I've had my Roamio for 3 or so weeks now. TV just went out 5 minutes ago. Roamio doesn't even show I have M-Card inserted. I pulled it out and reinstalled. Roamio not even showing it installed.
Did the M-Card just go bad?
Cable is not out, because other TV's that use Comcast boxes are working.
EDIT - Resolved. M Card went bad.