@Rnd
It is recommended to test the rtsp streaming in the local network first, make sure PC and camera are connected to the same Wi-Fi network and see if live stream works.
How can I play an RTSP live stream of my Tapo camera
To stream remotely or with public IP, try to open ports on router for the camera's IP address, and use the public IP or WAN IP on status page to access camera
- ONVIF Service Port: 2020
- RTSP Service Port: 554
Port forwarding: how to set up virtual server on TP-Link wireless router?
- Test if ports 2020 & 554 are opened through port scan website like ' canyouseeme'
Besides, it will show WAN IP/ Public IP and should be the same as the WAN IP address on router web page. Btw the Public IP of router is assigned by your ISP