No video from battery stickup cam

I have a total of three battery stick up cams, all run by solar panels. However, one of them will no longer let me access the live view using both the ring app or rapid ring app. Any motion events recorded by the camera are just black. Power status good, ignal strength RSSI -47 (good), and firmware up to date.When I try live view in the Ring app, it just spins at 'Activating Device...'. With the Rapid Ring app it changes to 'Establishing session...' and then says my wifi network may be blocking live view. I have tried both on my wireless network and over cellular data.I'm having no issues with the other two cameras.