Playback Issues - Audio/Video & Power

Help with audio & video playback issues, TV display type recognition & compatibility, HDCP messages, troubleshooting playback errors, advertisements, and resolving power issues.
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Level 7

Roku Premier Plus ARC issues


I have a LG 4K tv, LG SH4 sound bar and a Roku premier plus. Currently I have the Roku connected to the Soundbar via HDMI and he sound bar connected to the TV via HDMI ARC. I cannot get a 4K display with this set up. When I connect the Roku to its own HDMI port and the sound bar via the ARC port I sometimes get sound through the soundbar and 4K HDCP 2.2 from the Roku and TV. However when I turn the tv and soundbar off this connection is forgotten everything needs to be reset to sometimes get it to work. Any suggestions to get a constant connection? Thanks.
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