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MQTT on the SIM5300E module responses very slow "PUBACK, PUBREC, ..." messages.

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Tiep Cao edited this page Jun 6, 2019 · 1 revision

Hi all, I have some issue with MQTT on the SIM5300E module, When i use the AT+CIPSEND= command let to send the packet MQTT connect, publish QoS1,2 . Then I have to wait a long time(about 24 second) let to received "CONNACK, PUBACK" packets. Do anyone explain to me. Why I wait a long time.

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