Sometimes there is sound coming from the Arc even when the TV is not on..

Sometimes when the TV is NOT on, there will be a couple of seconds of audio coming from the Arc. It happens every few days. Any ideas?

Inputs to the TV are: Cable box; Roku Streaming box; & Oppo BluRay player.

Note: The cable box and the Roku do not have shutdown capability via the remotes, so they usually remain powered up.

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Experiment by removing TV HDMI connections, do it systematically. I would start by removing the two least watched sources. Keep notes.

You can also submit a diagnostic immediately after an event, then contact SONOS phone support. The diagnostic will indicate what was playing.

Philips TV?

SONY 65A9G 4K/HDR TV

Cox Cable/DVR - Model AX013ANC

Thanks Buzz. I will try your suggestion.

Have you ever experienced my issue? If so, what was the cause of your issue?

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