Samsung Soundbar and TV. No audio using ARC with X1 set to 4K

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@WhirlyBob wrote:

Just set up a Samsung soundbar and TV to my X1 wireless box. No issues connecting ARC, with TV and soundbar automatically transitioning to HDMI. Problem occurred when I attampted to set the resolution to 4K, UHD. Picture looked great, no sound. Have to keep device setting (on X1) at 1080p 60htz. Everything is less than 6 months old. X1 recognizes the TV is 4K UHD capable. Thoughts?

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leave the set top box connected to the TV. connect the TV's ARC output to the soundbar's HDMI input. working?

That defeats the purpose of ARC when bypassing the sound at and going right to the TV. Did you figure out the solution? Have kept my Xfinity box at 1080 because I can’t hear anything w 4K