I understand that there are some ongoing issues with some models of Samsung TV’s and soundbars from various manufacturers.

It’s been mentioned here in the community that a temporary workaround in some cases, is to switch off eARC on the Samsung TV and just use HDMI-ARC with AnyNet+ enabled and use DD+ (Atmos) audio, rather than LPCM multi-channel audio, and see if that works, until such time as either Samsung (or maybe Sonos) fix the issue. If that doesn’t fix it, then try disabling the CEC protocol on ‘other’ devices connected to the TV’s HDMI ports, but then powercycle those devices and the TV (and the Beam too).

Hope that assists.

Thank You Ken! I will check it out.

I am unable to change the pass thru setting to pass thru on my Samsung qn85a after cycling everything with the arc disconnected. I tried booking g up a Sonos beam instead of the arc but still get the greyed out pass thru option. Any suggestions. I don’t know whose fault this is but I am upset at Sonos for selling me a product that they knew had issues with Samsung. Really frustrated.

Update, looks like if there is no signal I can switch to pass thru, but if there is streaming signal I cannot. Regardless, still getting audio dropouts.