There are a few reasons you may see this error, including: Your internet speed has fallen below the 3 Mbps recommendation for standard definition streaming. There are too many devices connected to your home network, causing congestion. Your router needs to be restarted. The Hulu app on your device has a corrupted cache and needs to be refreshed. Follow the steps in the guide above to troubleshoot your connection. If problems persist, contact your ISP.