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Dear Friends , Really looking forward to your help and support My problem is i can not make work the HDMI ARC conection between TV and Sound Bar So far: TV LG OLED55B7P-S (latest firmware) Sound Bar LG SK9Y (latest firmware) NVidia Shield Pro 2017 (latest firmware in my region, waiting for Oreo) HD Set Top Box Arris/Motorola (Cable) HDMI Used the device manager on the WebOS to connect the Sound Bar , assigned HDMI ARC , Simplink , and tried both auto power yes and no, sound test did not work NVidia shield connected to SK9Y HDMI IN , HDMI OUT (ARC) to TV LG HDMI 2 (ARC) Works fine image and sound, sound of course is ok as it goes from NVidia to SK9Y directly HD cable top box to TV LG HDMI 4 and I get no sound from the TV thru the HDMI ARC port (previously establish HDMI 2 (ARC) to sound bar) I plug in the optical and works fine, Internal tv speakers works fine , BT fine….everything works but the HDMI ARC. What I am doing wrong? I am worry it may be a HDMI ARC port problem, TV Is about 3 months old, soundbar is about 2 weeks old Thank you in advance