@Cesarfnd 

Hi, 
You can refer to the following instructions to troubleshoot if the camera's detection feature does not work.
What to do if the Detection feature is not working on the TP-Link Camera?
 

If the same phenomenon persists, please confirm the following information.
  1. What's your camera's model number, hardware, and firmware version?
  2. Please go to the camera's Device Settings > Detection page. What are the enabled detection types? What's the corresponding detection sensitivity, and is the detection zone set to full-screen for all detection types?
  3. Which type of motion cannot be detected by the camera? You can send us a video showing the motion that can't be detected. (You can upload the video to your cloud server (such as Google Drive) or YouTube, generate a download link, and send it to me (@Solla-topee) via a private message.)

Best Regards