Facing TV Problems? Ask a TV Technician.
Hi and welcome to JustAnswer,Thank you for the question and your patience. Should you still need assistance for information purposes only...Initially, bear with us; re-confirm and post back when able with the complete model number of the Vizio.
Appreciate the additional information.
Was there any recent firmware update on the TV?
Have you tried (temporarily) disconnecting the Vizio's Internet connections and thereafter try the turning Off again?