Roku Streaming device, the most popular Streaming device with least issues.This might be a common solution. But sometimes, we won’t notice this issue. Check whether you have a proper internet connection. Stream live videos or shows using your mobile phone or PC and ensure whether they stream the content without any issue. If the videos buffer on those devices too, then obviously, the problem is with your router or network. Check if the signal strength is low in your Wi-Fi. If you lower the quality of the video, there is a chance that your content would stream with less network speed.

 Always keep your router as close as possible to your device. And ensure that there is no wall or cabinet between your device and the router, as this will become an obstacle to block the signal. This will resolve the issue and your Roku doesn’t buffer