Live video not working - Your Phone is Having Trouble Connecting to Ring

Dears,Live view is not working for me from last year..I keep getting "We are having trouble connecting to your Doorbell". Everytime I try to work on fixing it I fail. I checked the below Ring article [https://support.ring.com/hc/en-us/articles/115001499906-Ring-App-is-Having-Trouble-Connecting-to-the-Ring-Device-and-Showing-Video](https://support.ring.com/hc/en-us/articles/115001499906-Ring-App-is-Having-Trouble-Connecting-to-the-Ring-Device-and-Showing-Video)Followed every step, download and upload speeds for both mobile and Ring greater than 60Mbps. Ring signal strength \