Well, other streaming players work, and the Roku doesn't. That doesn't mean the problem is with the port. I've exchanged 3 Roku players. All had the same issue. I have two other non-Roku players that don't have the problem. They're all 4k Dolby compatible. All have the same HDCP protection. So, either a massive number of Roku's have a port problem, or they have another problem. I sent in a couple of screenshots with the error message. The first was ignored, but the second one prompted a reply that my device was defective, and they sent a replacement. The replacement still produces the message, but instead of multiple times daily, it only comes once every 3-4 weeks. I watch a Fire Cube in the mornings and the Roku in the evenings. The Cube has never had a problem, and both are wired exactly the same way with the same kind of UHD cables. The streaming stick had the problem for a day, but has not had a recurrence. I watch the Cube in the morning because some stuff is easier to find, and it provides some closed captioning that Roku doesn't. I read somewhere a software update is anticipated, which will fix the problem. Based on my experience, I think they have both software and hardware problems. If not, the replacement device would behave as poorly as the previous ones.
