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I have just bought the Sonos arc and connected it all up following the instructions. LG OLED 65 connected with HDMI ARC input from SONOS ARC. There are 2 other HDMI cables, one for a Skybox and one for VIRGIN 360 BOX. Whenever I turn off the TV and turn back on again the SONOS does not play sound from the TV and its own installed apps even if the VIRGINBOX 360 has not been turned on. I open the App and tells me another Theatre product connected is in conflict. The only way I get sound back is to disconnect the HDMI 4K cable connected to my VIRGINBOX 360 from the TV. This is maddening and cant find any guidance on how to solve this. Does anyone have a clue what Im doing wrong?

  • What is actually connected to each TV HDMI port?
  • Are there any options to switch off HDMI-CEC on the Sky Box or VM 360?…or…
  • Have you perhaps tried using any HDMI CEC-Less adapters to see if that may stop those connected devices ‘possibly’ stealing focus away from the TV’s Arc/eARC port (HDMI-2)?

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