MKRNB1500-Azure_IoT

[splitout]

Hi sir,

Iam actually testing your project with the MKR NB1500 to connect to Azure-Cloud.
In the most cases the "mqttClient.connectError()" returns the value "3". Error-Code for: "MQTT_SERVER_UNAVAILABLE "
Out 1 of 100 tests to connect the mqttClient works fine. Then the connection to the azure-hub is successfully. But if I start the c-program again, the mqttclint.connect() shows an error again.
It seems like a problem in the mqttClient.connect(broker,8883). The retry doesnt work, because the connection over the SIM-Network is to slow. (presumable)

Can someone help me? I need help...

Sourcecode:
void connectMQTT() {
Serial.print("Attempting to connect to MQTT broker: ");
Serial.print(broker);
Serial.println(" ");

while (!mqttClient.connect(broker, 8883))
{
// failed, retry
Serial.print(".");
Serial.println(mqttClient.connectError());
delay(500);
}