According to “SIM7000_Series_MQTT_Application_notes”` from here: SIM7000 Application Note
There are MQTT commands which makes it easier to handle and maintain MQTT connection. While I connect to MQTT broker by using AT+SMCONN command (which connect and maintain the connection) it works fine and connect to MQTT broker but if I restart my device when it’s already connected to MQTT broker and try to reconnect again using AT+SMCONN command it takes too longer(aprx 4-5 mins) to connect again. Any help to fix this issue is welcome.
**I am Sorry for my English guys.