Hello @Gurky
It is recommended to test rtsp streaming in the local network using VLC Player first, make sure PC and camera are connected to the same Wi-Fi network and see if camera is accessible through rtsp.
How can I play an RTSP live stream of my Tapo camera
To stream remotely, 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.
If you use other Onvif software, also open port 2020
- ONVIF Service Port: 2020
- RTSP Service Port: 554
Here is how to open ports on tp-link router 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.