You've reached your streaming limit.
This error occurs when another stream is already open or active on another device. Please close out or end the streaming session on your first device to begin streaming on your Roku.
University accounts only allow each user to stream to one device at a time, this includes Laptops, Mobile Phones, Tablets, and Roku. You can authorize more than one Roku per university account, but you will not be able to stream to more than one Roku at a time nor simultaneously on another device.