Help Center > > FAQs> Secondary Development> FAQs About Product Development> Device Development> Commands Fail to Be Delivered When a Device in DRX Mode Does Not Report Data in One to Two Days

Commands Fail to Be Delivered When a Device in DRX Mode Does Not Report Data in One to Two Days

Updated at: Jun 26, 2019 GMT+08:00

In DRX mode, if a device does not report data within 25 hours, the device status changes to abnormal. If a device does not report data within 49 hours, the device status changes to offline. Therefore, devices in DRX mode must report heartbeat messages at least once every 25 hours to ensure that they are online.

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