Hi @DragonDave! Great job checking network first as this is the most common culprit for connection concerns. Now that you’ve confirmed having a sufficient RSSI, or wifi signal, for video connection, the next best thing to check is mobile device connection.
Please ensure bluetooth and VPN is disabled, and other apps running in the background are closed. Try also removing and reinstalling the Ring app on your mobile device, and then testing video on wifi only, as well as on cell data only, to see if one connection might work better than the other. I hope this helps! 