Welcome to the Roku Community!
I'd be delighted to look closely to see how we may assist you in getting started.
For troubleshooting purposes, have you tried re-connecting your Roku to a solid wireless network to see if that helps resolve the issue you are seeing? You may also try to connect to an alternate wireless network, such as a mobile hotspot, to see if you are experiencing the same issue.
With detailed information, we will be better able to assist you.