Help & troubleshooting for channels on your Roku device, including adding/removing channels, logging in to, authenticating, or activating a channel, channel-specific playback issues, assistance contacting channel publishers to report issues, and adjusting channel-specific settings.
Thank you for your reply. This was a new version of SLING that was available, it wasn't just adding another channel. The instructions that I followed were the instructions included in the error message. But the issue has been resolve. SLING does work now.