Azure IoT Hub MQTT connect error 5 (unauthorized)

Question

Haris Papageorge 251

Hi,

I have successfully connected with an MQTT client (MQTTfx) to an IoT Hub with no issues.

However when I try to do the same with my device (HL7800 from Sierra Wireless) I get a connect error 5.

What could be the problem here? I am using MQTT 3.1.1 on both occasions and the same username and clientID.

I created different devices to make sure it's not something to do with multiple clients on the same device.

thanks

AshokPeddakotla-MSFT 35,971 Reputation points Moderator

2021-07-22T13:05:09.81+00:00

@NickWeliodro-9668 Could you share the complete error message? Please check this similar query and let us know if that helps?

Also, we are checking on this issue internally and update you as earliest with our findings.
Murat 101 Reputation points

2021-08-19T02:29:23.34+00:00

I have been working on this project with my Arduino MKR 1010 WiFi

Following the guidelines below
https://github.com/microsoft/IoT-For-Beginners/blob/main/2-farm/lessons/4-migrate-your-plant-to-the-cloud/wio-terminal-connect-hub.md

I updated all the header to use the right wifi library.

Below line added where appropriate

elif ARDUINO_SAMD_MKRWIFI1010

include <WiFiNINA.h>

But nevertheless, so far I cannot connect to IoT Hub. I cannot get it connected to it gave me error #5 which is I assume #define MQTT_NOT_AUTHORIZED 5.

I don't know what I am doing wrong?.. Is it due to the hardware? Any idea? Or SSL Client

Any help would be appreciated.
AshokPeddakotla-MSFT 35,971 Reputation points Moderator

2021-08-19T10:43:27.84+00:00

@Murat I see that you have created a new issue : https://learn.microsoft.com/en-us/answers/questions/519643/arduino-mkr-wifi-1010-to-azure-iot-hub-mqtt-not-au.html we shall continue the discussion on your new thread.

1 answer

AshokPeddakotla-MSFT 35,971 Reputation points Moderator

2021-07-22T13:05:09.81+00:00

@NickWeliodro-9668 Could you share the complete error message? Please check this similar query and let us know if that helps?

Also, we are checking on this issue internally and update you as earliest with our findings.
Murat 101 Reputation points

2021-08-19T02:29:23.34+00:00

I have been working on this project with my Arduino MKR 1010 WiFi

Following the guidelines below
https://github.com/microsoft/IoT-For-Beginners/blob/main/2-farm/lessons/4-migrate-your-plant-to-the-cloud/wio-terminal-connect-hub.md

I updated all the header to use the right wifi library.

Below line added where appropriate

elif ARDUINO_SAMD_MKRWIFI1010

include <WiFiNINA.h>

But nevertheless, so far I cannot connect to IoT Hub. I cannot get it connected to it gave me error #5 which is I assume #define MQTT_NOT_AUTHORIZED 5.

I don't know what I am doing wrong?.. Is it due to the hardware? Any idea? Or SSL Client

Any help would be appreciated.
AshokPeddakotla-MSFT 35,971 Reputation points Moderator

2021-08-19T10:43:27.84+00:00

@Murat I see that you have created a new issue : https://learn.microsoft.com/en-us/answers/questions/519643/arduino-mkr-wifi-1010-to-azure-iot-hub-mqtt-not-au.html we shall continue the discussion on your new thread.

Answer 1

Murat 101

There is a great article just solving the problem above

Solution components are:
Arduino telemetry capture
Azure IoT Hub
Arduino Telemetry Capture
Using Arduino MKRWifi1010 or Arduino MKR WiFi 1010

AshokPeddakotla-MSFT 35,971 Reputation points Moderator

2021-11-08T14:43:39.477+00:00

@Murat Thanks for sharing the article. This would definitely benefit the community.