@mix1987 

Generally, the pan&tilt camera may rotate on its own under the following circumstances, aside from manual control. Please confirm whether the issue with your device might be caused by any of the following situations. To help with this issue, please contact the local TP-Link support team via email directly. 

1. Motion Tracking feature enabled. In addition to the motion tracking switch within the camera settings page, there are two other ways to enable motion tracking: camera Home/Away mode and automation.

• Motion tracking feature: App Camera Settings -> Detection -> Motion Tracking.
• How to edit Home and Away Mode for Tapo&Kasa Cameras on the Tapo app
• Automation (App -> Smart tab -> Automation): The Tapo C200 can be set up as an action device in automation to control turning the motion tracking feature on or off. Check if there is any automation rule that includes this configuration. E.g. When the front door light turn on, Then turn on C200 Motion Tracking.

2. Reboot. Check if the camera has enabled Auto Reboot, or if the camera reboots due to unstable power supply.

• Auto Reboot: App Camera Settings -> Reboot Camera  ->Auto Reboot.
• Check whether the power cord and power adapter of the camera are connected securely.
• If you are not using the original power supply, check if the power supply parameters meet the requirements. Take Tapo C200(EU) V5 for instance, the adapter output should be 9V, 0.6A. Specification - Tapo C200

3. Pan&Tilt control triggered by automation. The Tapo C200 can be set up as an action device in automation to rotate camera to a specific viewpoint (Pan & Tilt Control). Check if there is any automation rule that includes this configuration. E.g. When at 09:00 AM, Then rotate C200 to viewpoint 1.