[Make sure the camera is connected to the Internet and try again.] is displayed on the smartphone

Check the following.

• Check whether the camera has a stable connection with Wi-Fi. If (Wi-Fi connected, communication status good) is displayed on the camera monitor, the connection with Wi-Fi is stable. If the signal strength is insufficient, move to a place with a stronger signal, etc.
• Public Wi-Fi that requires web authentication cannot be used. Make settings to use the Wi-Fi in your home or office, etc.
• If connection is still not possible after trying the above, try connecting again later.