Camera is blurry and has ring round it

Hi there, @Craigpat! Although video may look good, these RSSI readings are an indicator of distance, interference, or both. While one device might provide acceptable video quality, despite the RSSI reading, it is possible this signal strength could impact both devices at some point. As an example, your Doorbell might have a -75 RSSI solely due to distance or a tough exterior wall, but the router is strong enough to still communicate as intended. Whereas your Doorbell with a -66 RSSI might have that RSSI due to distance, multiple walls, multiple floors, or large appliances. Signal interference can be caused by many things, as described in our Community post about RSSI. Improving the line of sight between your router and your Doorbells, or even using an extender, will help best with video.