After about 15 to 30 minutes the picture is ahead of the sound by as much as 0.5 seconds. Turing the TV off, weaiting a few seconds and turning it back on re-synchs the two. Is there a fix for this? I moved my Sonos Boost from connected to the router on the second floor to connected to a signal extender pod next to the TV on the first floor, with little to no improvement. Any suggestions would be appreciated.