Note: This error occurs when Internet bandwidth is poor.
Check with your Internet Service Provider to determine what speed connection you’re subscribed to. if necessary, you may want to upgrade to a faster connection.
Reduce traffic on your wireless Network: To maximize your broadband connection to your TCL Roku TV, be sure to limit the use of other Internet-connected devices on your home network – such as phones, laptops, game systems, and tablets – which share a portion of your available bandwidth and affect streaming quality.
Better yet, invite everyone to the living room for a family movie night
Check your internet Speed: Once you have optimized the wireless signal between your router and the Roku player, you should check that your Internet speed meets minimal requirements for the channel and the video quality being streamed.
Generally, as the quality of the streaming video increases, higher Internet speed will be required for a smooth experience. For instance, streaming SD (480p) video will require less speed than compared to HD (720p/1080p) video.
Here are minimum speed recommendations for some of the most frequently streamed channels on Roku; Netflix (1.5 Mbit/s), Hulu (1.5 Mbit/s), YouTube (0.5 Mbit/s), Amazon Instant Video (0.9 Mbit/s), SlingTV (3.0 Mbit/s).