Let us help you to fix Xfinity Stream Not Working on Roku. If you do not troubleshoot the error, it's hard to proceed with uninterrupted streaming. At first, understand what causes the error to popup on your device screen. You can check the device compatibility before installing the Xfinity stream app. Also, ensure to connect your device to a good speed network before streaming. If the errors remain, check if performing a device restart can fix the issue. For more details, you can call us at + 1-820-300-0450.