Unable to Connect to AWS IoT via MQTTX

RE: Unable to Connect to AWS IoT via MQTTX

Cole Hafner — Tue, 05 Aug 2025 13:46:37 GMT

Hi Avgerinos,

What topic are you subscribing to? The client will be disconnected when subscribing to unauthorized topics. It sounds like this may be what is going on. Are you using the mqtt prefix ie prod/<team-id>?

Thanks,

Cole

RE: Unable to Connect to AWS IoT via MQTTX

dejans — Fri, 01 Aug 2025 09:57:44 GMT

Hi,

We will look into this. I expect to get back to you by the end of next week.

Best regards,
Dejan

RE: Unable to Connect to AWS IoT via MQTTX

Avgerinos89 — Thu, 31 Jul 2025 07:46:32 GMT

Hello,

No, I have not tried the AWS IoT sample.

I am sorry for the misunderstanding, my main goal is to connect my computer as an MQTT client to the nrf Cloud in order to get the messages from other devices (nRF9160).

My setup is that I already have a number of nRF9160 devices connected to the nRFCloud, that already send messages. I would like to connect my computer as an MQTT client to the nRFCloud in order to get all those messages to my computer. As you can see in the following picture.

In order to do the above I have tried to use the CreateTeamDevice From the website: https://api.nrfcloud.com/

Moreover, I have followed the next steps.

In the following pictures I am trying to connect to the MQTT using the steps described above, but with no success.

Here is the setup of the MQTT client on my computer.

In the next picture I am getting the certificates.

After the above steps my MQTT client can not connect to the nRFCloud.

Do you know if I skip any step or do you have any guidelines on how I can achieve that?

Thanks in advance

RE: Unable to Connect to AWS IoT via MQTTX

dejans — Fri, 18 Jul 2025 15:14:07 GMT

Hi,

[quote user="dejans"]Can you test your connection to AWS IoT using AWS IoT sample? To be able to connect to AWS IoT, please follow the steps shown in the Setup section.[/quote]

Have you tried AWS IoT sample? What was the result?

Could your client previously at any point connect to AWS IoT Core? Have you tried to use some other client for testing?

You can also look at FOTA over Wi-Fi exercise (which uses AWS-IoT) for checking that you did not omit any required steps.

Best regards,
Dejan

RE: Unable to Connect to AWS IoT via MQTTX

Avgerinos89 — Fri, 18 Jul 2025 12:15:59 GMT

Hello

Let me explain what I mean better.

From the website: https://api.nrfcloud.com/

I want to use the creating device end point, to create a project / client that will monitor all the events from the device to nRFCloud.

I have use this API and I have getting the certificates but I can not connect to the MQTT, I am getting authorization error as I explain above.

Thank you

RE: Unable to Connect to AWS IoT via MQTTX

dejans — Mon, 07 Jul 2025 16:47:01 GMT

Hi,

Can you test your connection to AWS IoT using AWS IoT sample? To be able to connect to AWS IoT, please follow the steps shown in the Setup section.

Best regards,
Dejan

RE: Unable to Connect to AWS IoT via MQTTX

Avgerinos89 — Mon, 07 Jul 2025 07:28:31 GMT

Hello,

I have also tried it using pem file with the same results.

Thank you

RE: Unable to Connect to AWS IoT via MQTTX

dejans — Fri, 04 Jul 2025 14:10:55 GMT

Hi,

Which format should your Client Certificate File have? In your screenshot Client Certificate File is client-cert.pfx.

Best regards,
Dejan