Live view streaming error

Hi, I have Live view issue with my Ring doorbell. It started to appear when I switch over to a 5G ISP (Three Broadband UK). Three insisted that there isn’t any difference between their 4G network (which I was with through a 4G wifi modem) and their 5G. However, I got intermittent Live view only. Most of the time Live View will simply timed out and in Rapid Ring App it will should weak connection. My Internet plan is unlimited, got a mesh wifi network (Amplifi) and have really good WIFI connection everywhere. Current Ring signal strength is RSSI-59. All other cameras are working. I have Eufy, Simplisafe, all works. Only the Ring Live view is not working. Any chance I can get this fixed? Would it be related to Ring incorrectly considered my 5G public IP (starts with 188.x.x.x) a VPN IP?