Arc TV sound cuts in and out.

Well after much deliberation for weeks I decided on the Arc, Sub and two Play1’s, hoping Sonos would at least put their head above the parapet and acknowledge this major problem. There are many hundreds of complaints and suggestions on how to resolve this persistent issue but none from Sonos. My tv is not eArc or Dolby Atmos (that baby will be here in May when I have the dosh), however my present TV is a decent 55’ samsung 4K which I have had for 4 years and never ever had a problem with several soundbars with  sound cut out. I have tried both wifi connection and ethernet connection to all my Sonos setup pieces and gone through just about every suggestion I have come across only for the problem to return in a short space of time. Some say it only happens occassionally and only certain channels,which os ‘ok’...realy ?. If I am going to drop 2K on a soundbar then ‘ok’ is not going to cut it. I really do like Sonos and also have an Amp, sub and two speakers in my kitchen which work perfectly well. I shall perservere with this lot over Xmas (at least I shall have 95% decent sound) and if it is still an issue into January then, sorry Sonos but it’s all coming back to you as I just cant be arsed faffing around with it any more, and I shall purchase another alternative top quality tried and tested soundar and sub for my new TV when I get it. 

My sound disappears sometimes when I change the channel on my set-top box.  It stays off thereafter, whichever channel I select…  ...unless…  ...I go back to the original channel (when the sound worked) - and it comes back.  It is usually OK thereafter when I channel hop some more.  Obviously this isn’t a fix, but it may minimize the ‘faff’ for some folks.  It’s an LG 8k TV

Sonos please fix this! We are having this problem too for weeks. Everytime we power the tv, the problem occurs. We tested all your proposed “solutions”, but none of them work! This is clearly a wide spead problems, which should not occur in such a setup (Arc, 2 Ones and a sub). Get us a software fix or whatever, this has been around for months and still no real solution!

I still stand behind my point that if I am spending 2k on a Sonos setup (brand new) I don’t want or even expect any faff whatsoever.

Similar here with LG CX but more when switching from another device like apple tv 4k or xbox back to live tv, (no sound), if I switch to analogue channel and back to digital live tv channel it brings the sound back.

So many different audio issues, and Sonos don’t seem to want to respond to this thread lately to give us some hope that they are looking into it, unreal after spending so much money on the ARC and a Sub.

I have the same TV and the same issue above. I typically have to power cycle the Arc. Not fun when its mounted and plugged into the outlet behind the TV 

Also, I’ve notice I cannot join other speakers to the arc without it failing, unless I have at least one device plugged into the network. If everything is on wireless, I have no issues joining speakers/sub to other speakers etc., only when I have to pair it with the ARC :(

Just got the notice from Sony that my XBR 65X950G tv has a new software update, and it supposedly fixes my issue of audio drop outs when going to In app Netflix. It’s down loaded so we shall see. If this fixes it, it may not be a Sonos issue. 

I don’t see this in the US version of the update.

I don’t see this in the US version of the update.

 

Look at the yellow highlight area..

I got the ARC and the Sony X900H, also have the same issue with audio cutting in and out after a few seconds. I already updated the tv on the latest firmware. I already tried everything that Sonos suggested.