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    My device had function failure?
    What is the reason why the device is often offline after being removed and added again?
    Why does the App always show that the device is offline, and how does it automatically recover in a second or two?
    What should I do if the smart device is offline after changing or resetting the router or changing the network provider?
    The device is offline and no one is around. Can I remotely reset the device to bring the device back online?
    Use an Android phone to add a Bluetooth device to display offline?
    What should I do when my device goes offline unexpectedly after it has been added?
    How to troubleshoot when a 4G device goes offline?
    If the device indicator light keeps flashing, how to troubleshoot potential issues?
    Do I need a Zigbee gateway to manage my Zigbee devices?

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