When devices used for watching movies and TV shows are connected using HDMI® cables, each device must support the copy and content protection known as HDCP. If your Roku® streaming player detects that the HDMI link with your TV, audio/video receiver (AVR), or soundbar does not support HDCP, an "HDCP Error Detected" message or purple screen like those seen below may be displayed.

Similarly, if you are watching The Roku Channel on your computer with an external monitor, and it detects that either the monitor or HDMI cable does not support HDCP, an "HDCP Error Detected" message may appear.
This article explains how to troubleshoot and resolve the issue if an HDCP error is detected when using your Roku player or when watching The Roku Channel on an external computer monitor.
HDCP is the copy and content protection standard used by the movie and TV industry. Copy protection/content protection has been around for a long time, and in its early stages was what prevented you from copying commercial VHS tapes. The latest copy protection technology is called HDCP (High-bandwidth Digital Copy Protection), and it is used on HDMI connections for digital devices like Blu-ray™ players, cable boxes and Roku streaming devices. It is also used when watching Hollywood content on an external monitor connected to a computer.
If you are streaming 4K Ultra HD (UHD) or HDR content on these devices, a newer version of the copy protection technology, known as HDCP 2.2, is required. Learn more about HDCP 2.2 and why it is important to playing 4K UHD or HDR content.
If you see the "HDCP Error Detected" message or purple screen when you are specifically trying to stream 4K UHD or HDR content on your Roku player, you should review the instructions and requirements for:
If you see either error screen when attempting to watch any content on your Roku player, perform the following set of steps to help resolve the issue.
If the issue continues after attempting the instructions above, try the additional suggestions below.
If you see the "HDCP Error Detected" message when trying to watch The Roku Channel on your external computer monitor, disconnect the HDMI cable to your external monitor and try watching the same content on your computer screen if possible (e.g. a laptop screen). If the content plays without issue on your computer screen, try reconnecting the HDMI cable making sure each connector is attached firmly and securely. If you continue to see the "HDCP Error Detected" message, try the suggestions below.
Last updated at 2/18/2026 3:18:17 AM
