Help Center > > FAQs> Secondary Development> FAQs About Product Development> Device Development> Registered Devices Cannot Connect to the IoT Platform

Registered Devices Cannot Connect to the IoT Platform

Updated at: Jun 26, 2019 GMT+08:00
  1. Run the AT+CGATT=1 command on the module to check whether an error is reported. If yes, perform the following operations:

    • Confirm the status of the NB-IoT card with the NB-IoT network carrier.
    • Confirm the module status with the module manufacturer.

  2. If the device is successfully connected to the network after you run the AT+CGATT=1 command, check whether the IP address and port number of the IoT platform used by the device are correct.

    NOTE:

    The IP address and port number are obtained from the IoT platform service provider. Port 5683 is used for non-encrypted access, and port 5684 is used for encrypted access.

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