When you use this dock to watch videos on streaming platforms with HDCP protection, please temporarily disable the DisplayLink driver from your taskbar. This workaround solution will allow you to watch the video using one external monitor that is connected to the MST video port, which can be either DP++ for video 1 or HDMI for video 2. When you are done streaming video that has HDCP protection, simply enable the DisplayLink driver, and then you can have up to four displays for Windows/Chrome and up to three displays for macOS on your workstations.