Got my new Roku Express 4k+ installed yesterday, and everything was working great. Woke up this morning, and started getting HDCP errors when I tried to watch anything.
Fiddled around, moved it to a new HDMI port, and it started working again. Went out, tried it again this afternoon, and the HDCP error is back in full force. 40 minutes on the phone with Roku support, and the best they could tell me was that they'll escalate and have someone call me back (with no ETA).
I don't have a 4k TV, but the display settings for 1080p or 720p both give me the green checkmark next to HDCP 1.4. So itshouldwork just fine.
Interesting data point: while on hold with support, I was able to successfully stream through the Roku live TVvia my Amazon Fire stick!But not through my new Roku.
Already tried 2 HDMI ports, and 3 HDMI cables, plugging in, unplugging, plugging in again ad nauseam.
Thanks for the suggestion. I hope this solution works. What is really frustrating is that when it occurs, the only action needed to fix it is to remove the HDMI cable and plug it in again, leading me to believe that there is a problem with the Roku Express 4k+. This is also the first roku I have had that would stop, and then start up after the tv is turned off... that further supports your suggestion to turn off power saving.
I've seen this error occasionally on my older devices, but this is a regular event on the express 4k+.