I've had a Premier+ for a few years. Works fine, never a HDCP error. Just got a 2020 Ultra, swapped it in place of the Premier+, absolutely no other changes. Now I get HDCP errors several times per hour. The message comes up, but program audio continues, and after a few seconds the video returns (until the next time).
I receive the HDCP 020 error on my Ultra 2021 model when viewing videos with Dolby Vision. I have gone through all the fix recommendations from Roku and other online sources. I disconnected all power and HDMI cables, changed Roku settings, and it worked for one video on Netflix. The next day, the 020 error is back. The last Roku Ultra 2021 update was on 12/10/21. I ordered Zeskit Lite 2.1 48 gbps cables and will try them.
I have the Roku set to passthrough on my updated HDCP 2.2 compliant Denon AVR, to a Sony 2020 model A8H via EARC.
I'm pretty sure my issue is a bad Roku Ultra 2021. I turned on my tv, AVR, and Roku Ultra, and attempted to watch a video. The video started and played for about 5 seconds, and then the tv screen went black, and the Sony "Bravia" script displayed in bottom right hand corner, while audio continued to play. I pressed the Roku remote pause button and audio continued to play. Then I pressed the Home button, and audio continued to play. I pressed the Display button on my Sony remote, and the screen returned to the Roku menu page. I attempted to watch the Roku device a second time, and received the same results. I am currently using the provided Roku HDMI cable, and a Zeskit Cinema Plus cable rated at 22.82 gbps. I turned on my Dish box and selected the CBL button on my Denon remote. I had uninterrupted audio/video for at least 10 minutes before shutting the tv off. The Dish box works, the Sony tv works, the Denon receiver works, but now the Roku does not play video. I have tried 4 HDMI cables, rated at 18 gbps and 22.82 gbps. All updates are current.
I processed an exchange with the retailer. I should have a new Roku in hand before Christmas.
I installed two new Zeskit Lite Certified Ultra High Speed 48 gbps HDMI cables. One, from Roku Ultra 2021 to Denon AVR, and one from Denon AVR to Sony A8H 65" TV. I watched one 1.25 hour Netflix comedy special in Dolby Vision, and two 50 minute Netflix series videos in Dolby Vision. I received zero HDCP 020 error messages. The remote continues to act flakey, and doesn't follow input commands 100% of the time. I don't know if it is a bad remote, or a bad Roku Ultra 2021? I am going to keep an eye on this issue!
The HDCP 020 error appears to be fixed. I am thinking the issue was coming from the supplied HDMI cable from Roku. Reason? The previous HDMI cable I used was rated for Dolby Vision. Also, other owners have mentioned fixing the error with 48 gbps HDMI cables. Roku should consider upgrading to Dolby Vision rated HDMI cables, or drop Roku device prices $10 to $15, and recommend customers purchase a Certified Ultra High Speed 48 gbps cable shorter than 6 feet.