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 Ultra with NO Image or sound

Issue: NO image or sound from the Roku Ultra.
If I unplug the power to reboot it comes up with the ROKU display and sound for a few seconds and then a black screen.
TV is Samsung UN48JS900
Roku Ultra 4640x
Serial# YP00GM268718
Firmware 8.0.1 build 4018-29
Device ID: 7LC68G268718
Box connected to the internet wireless, Asus high speed AC
Internet service is cable 200MB most of the time with all connected I have 120MB
The Box is connected via HDMI
Resolution is 4K HDR 60 
0 Kudos