Flex displays Netflix Dolby Vision in 720p format
Here's the deal: I have an LG C9 (2019 manufacture date, software version 05.00.03). It's connected via HDMI 3 to an Xfinity Flex box.
I can say with certainty that when I play a Netflix Dolby Vision video the display mode is 720p
My network connection is good. The network test indicates about 89Mbps.
When I access Netflix using the Netflix app installed on the TV the display mode is 2160.
Why am I only getting a 720p display resolution when I access Netflix using the Flex box? It should be 2160.