I just purchased the Tapo C220.

I found that it doesn't support RTSP and ONVIF as per the specifications.

Hardware Version: V1.0
Fremware Version: 1.1.14 Build 240714 Rel.76584n

1. Create an account in Advanced Settings on the Tapo App.

2. VLC URL

rtsp://Username:Password@192.168.1.218:554/stream1

rtsp://Username:Password@192.168.1.218:554/stream2

3. iSpy URL

http://192.168.1.218:2020/onvif/device_service

http://Username:Password@192.168.1.218:2020/onvif/device_service

4. Tried using and not using a memory card.

5. Reset button.

I have tried all the above and still cannot use RTSP and ONVIF normally.