Roku Streaming device, the most popular Streaming device with least issues. Yes! Once you set up your Roku, you need not go to the service center often. But in recent days, some people complain, “Roku Keeps Buffering”. We have come with a number of solutions to resolve this issue on your Roku and to enjoy streaming without difficulties

Verify the Internet Connection
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.

I have the same thing with my firestick now. It's buffering all the time and drives me nuts.
Any ideas how to fix it?