SIM800_MQTT
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MQTT Ping failed
STATE: IP STATUS AT+CIPSTART="TCP","v1b82961.ala.us-east-1.emqxsl.com","8883"
OK AT+CIPSTATUS
OK
STATE: TCP CONNECTING CONNECT MQTT.TCP_Flag = True pingSent = true Ping failed
cany you please help me to connect EMQX MQTT sever using CA certification