@Robin24 

Hi,
You can refer to the link below to troubleshoot if you fail to set up the Tapo Cam.
What should I do if I fail to configure Tapo Camera?
 

Please help confirm the following information if the problem remains.
1. What's the MAC address of your Tapo camera? You can send me the MAC address via a private message.
2. On the Tapo app, please ensure the Tapo C100 is removed. If not, remove it from the Tapo app, then reset it and reconfigure it for a try.
3. What's the LED status on the camera when start to configure it? Is it flashing green and red?
4. Try to enable a hotspot Wi-Fi on your phone, reset the camera and reconfigure it with a different phone, connect the camera to the hotspot Wi-Fi, and check if you can set up the camera successfully.

Best Regards

  @michal33  Thank you for sharing your solution~