I have no audio on most of my channels. I only have audio on the local TV networks. Traditional "cable" channels like ESPN or premiums like Showtime do not have any audio.
@john888 wrote: I have no audio on most of my channels. I only have audio on the local TV networks. Traditional "cable" channels like ESPN or premiums like Showtime do not have any audio.
Try powercycling the router, then the fios box.