@Hamahmi 

To change the WiFi network of a camera, reset and reconfigure the device is required. Some camera models support a soft reset, which is similar to a factory reset but involves a shorter press of the reset button. For example, on the C510W V2, holding the reset button for 5 seconds performs a soft reset, while holding it for 10 seconds triggers a factory reset. Relevant information can be found in the product's User Guide. TP-Link Download Center

Your post has been merged into an existing feature request thread, you can join the discussion there, vote & comment! Need to change Wifi SSID without resetting the Cameras

  @Hamahmi 

Actually deleting device from the app is equivalent to a factory reset. My apologies for the mistakes in the previous reply. 

Some camera models support a soft reset, which is similar to a factory reset but involves a shorter press of the reset button. For example, on the C510W V2, holding the reset button for 5 seconds performs a soft reset, while holding it for 10 seconds triggers a factory reset. The relevant information can be found in the product's User Guide. TP-Link Download Center

Device configuration is still required after a soft reset. You can link the camera to a new Wi-Fi network during the setup process, except that the other camera settings, such as detection and recording settings, remain in place after the setup is complete.