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RaultTN
RaultTN
Prominent Collaborator I
January 8, 2023
Answered

ARC intermittent connection loss possibly with Atmos only

Hi all. So far I think this is isolated to Atmos content however randomly while watching Prime Video or Disney content outputting Atmos (through fire stick 4K) I will lose signal (Beam gen 2 and two one sl’s as surround). When it happens I lose sound, the screen flashes and my tv’s LG logo appears for a second before going back to Disney or prime (whatever I’m watching).   I can push play and everything works again, but almost seems like something with the HDMI arc input is being “lost” for a split second.  Or maybe it’s the signal loss for a split second?  

I’ve changed HDMI cords and powered down both the tv and Beam to try and reset but no luck. Randomly happens, sometimes 5 minutes in and other times maybe 15 in. Any ideas?

fyi I recently changed to using SonosNet (beam hardwired Ethernet) as opposed to all wireless is this possibly an issue that anyone knows about?

Setup as follows:

Moderator edit: Removed picture with serial numbers

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    RaultTN
    RaultTNAnswer
    Prominent Collaborator I
    January 10, 2023

    Well gentlemen @Ken_Griffiths and @ThatOneDude  I think I am marking this as resolved.  Made it through the entire Disney + Atmos movie, and now running through an Amazon Prime Atmos show just to make sure but all is working as advertised and nothing cutting our nor any lip sync issues.  My System and settings are as follows:

    System: LG TV with a Firestick 4K in HDMI 1, Sonos Beam (Gen 2) in HDMI 2 (Arc) both connected via HDMI.

    LG TV Settings:

    HDMI: ARC

    Digital Sound Out: Auto

    HDMI Input: all inputs set to Bitstream

    Firestick 4K Settings:

    Video Resolution: Auto

    Match Original Frame Rate: Off

    Color Depth: Up to 10 bits

    Color Format: Auto

    Dynamic Range Setting: Adaptive

    Surround Sound: Best Available

      

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    RaultTN
    RaultTNAuthor
    Prominent Collaborator I
    January 8, 2023

    @Ken_Griffiths while I am testing the direct Ethernet is there a reason my two surrounds are now “WM:1” (wireless) as opposed to WM:0 which I assume means connected through SonosNet?  Only partially shown in this screenshot but my 3rd One (in my kitchen) is still WM:0?

     

    Ken_Griffiths
    Ken_Griffiths
    January 8, 2023

    I’m guessing you perhaps have the TV ‘on’. or playing, when you changed connection. When you power off the TV/stop-playback, they will likely switchover to WM:0 after a few minutes - if not, wait, or maybe try power-cycling them.

    Ken_Griffiths
    Ken_Griffiths
    January 8, 2023

    3 minutes after stopping TV playback/putting the TV into standby, the speakers will go into standby too and will likely switchover to WM:0 after that point.🤞

    Mr. T
    Mr. T
    January 8, 2023

    @RaultTN - do you know what speed your internet connection is? Is it possibly the stream buffering that is causing you issues with the higher bandwidth requirements of 4K/Atmos

      Ken_Griffiths
      Ken_Griffiths
      January 8, 2023

      Actually following in from what @Mr. T mentions there is a test facility on the Fire TV 4K to check if the connection is okay - in the Fire TV settings, goto Display & Audio and scroll down to ‘Audio and Video Diagnostics’ and see what the current capabilities are.

        RaultTN
        RaultTNAuthor
        Prominent Collaborator I
        January 9, 2023

        Hey gentlemen @Mr. T and @Ken_Griffiths.

         

        Ran the firestick network speed test and read 95mbps and sufficient for 4K streaming. Below is a screen grab of the diagnostics from Firestick. Seems to be in good shape?

         

          Ken_Griffiths
          Ken_Griffiths
          January 9, 2023

          I’m still not (yet) convinced it’s a network-related issue, but perhaps see how it goes. Still good to rule out these things however. 👍

          Mr. T
          Mr. T
          January 9, 2023

          Using the in-built TV apps, do you get the same issue? Or apps on the Xbox?

          RaultTN
          RaultTNAuthor
          Prominent Collaborator I
          January 9, 2023

          @Ken_Griffiths i just tried yet another hdmi cable and it cut out not even 5 minutes after starting. Not sure the timing means anything but 3 cables would be quite a coincidence. So at this point I think network may be ruled out. I’ve hard wired direct from ASUS router into the Beam and removed the switch all together. I’ve also tried changing cables and inputs into the tv. 
           

          The strange thing is that I had this “fixed” a few weeks ago and have no idea what changed in that time. This happened right when I set up the Beam (day 1) and I changed 100 things and it worked like a charm for weeks. I know for sure I did NOT have SonosNet being utilized when it was working. My stupid a** saw a post about how SonosNet is better so I thought I would check it out. And I’m back to hell on earth but ONLY with Atmos. So strange

          RaultTN
          RaultTNAuthor
          Prominent Collaborator I
          January 9, 2023

          @Mr T Great thought!  Let me get Disney+ going through the smart tv directly and see what happens. I guess that would narrow it down to the Firestick if it works. 
           

          Side Note: my surrounds have still not shifted back to WM:0 (still at WM:1 wireless) since my last restart but my kitchen Sonos is on WM:0?  Minor  though I suppose since my Beam is the issue.
           

          I’ll report back after testing direct through smart tv 

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