This message occurs when there is no mobile data connection or a WiFi connection to your device. When this occurs, you will still be able to connect to your Bluetooth switches/dimmers as these just require Bluetooth to be enabled on your device. It will prevent access/control of Zigbee devices and IP Cameras as this requires access to the cloud/internet. Via WiFi, without internet, you may still get control of the Zigbee switches/dimmers but not the IP Cameras.