1. For the first time, the mobile phone and device must be placed under the same Wi-Fi network environment.
2. After the device is connected to the network with Wi-Fi, the phone can be switched to other network control.
3. Make sure that the device must be connected to the Wi-Fi at all times so that the app can be used for normal linkage.
Note: Networking devices requires a 2.4G network.
Further questions:
How to add device in App for Internet connection？
Device-connection failure?
Does the device need to be re-added after changing the router?