1,282 questions with Azure IoT Hub tags

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0 answers

Track Device Twin Changes with Azure Function

I want to be able to track when a device updates its twin. I cant find a way to do that. I was going to make an event hub that would trigger my azure function, but Device Twin update isn't an event type. SO my question is, without having that as an event…

Azure IoT Hub
Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,282 questions
asked 2025-08-29T18:03:31.7+00:00
Drew Stevens 40 Reputation points
commented 2025-08-29T20:32:18.0766667+00:00
VSawhney 1,130 Reputation points Microsoft External Staff Moderator
0 answers

Settting IoT Hub to TLS 1.2 results in an MQTT not authorized issue

Hi, After setting the IoT hub to TLS 1.2, my Azure IoT DevKit board doesn't connect anymore. I narrowed the area in the code down where the issue happens when I configured IoT hub with TLS 1.2: Firmware:…

Azure IoT Hub
Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,282 questions
asked 2025-08-12T08:47:35.5066667+00:00
Eric Brunner 0 Reputation points
edited a comment 2025-08-28T07:28:05.8+00:00
Manas Mohanty 9,655 Reputation points Microsoft External Staff Moderator
1 answer

Will TLS1.2 with cipher suite TLS_RSA_WITH_AES_256_GCM_SHA384 work after 31 August 2025? (device WISE4060/LAN)

It is not clear to me from the following documentation if TLS1.2 with cipher suite TLS_RSA_WITH_AES_256_GCM_SHA384 will work when connecting to Azure IoT Hub after 31 August 2025. We are using Advantech WISE4060/LAN devices and from Metrics I can see…

Azure IoT Hub
Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,282 questions
asked 2025-08-12T07:25:52.25+00:00
Mikael Plate 11 Reputation points
commented 2025-08-27T05:27:05.7733333+00:00
Mikael Plate 11 Reputation points
1 answer One of the answers was accepted by the question author.

How to avoid Base64 encryption for telemetry data through Azure IoT SDK

Hello, I'm currently using Azure IoT Hub SDK 1.2.10 for my IoT project. The telemetry data sent from my IoT device should not be encrypted (JSON format) but I've noticed that the SDK does a Base64 encryption before sending the telemetry data to the…

Azure IoT Hub
Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,282 questions
Azure IoT SDK
Azure IoT SDK
An Azure software development kit that facilitates building applications that connect to Azure IoT services.
229 questions
asked 2020-10-26T22:04:47.537+00:00
Giovanni Genta 21 Reputation points
commented 2025-08-21T09:30:29.2533333+00:00
srihari kolli 20 Reputation points
2 answers

Azure IoT Hub: Metric "Total number of messages used" seems incorrect

The metric "Total number of messages used" seems incorrect because it decreased during the last week although the metric "Telemetry messages sent" is stable (as expected). The metric "Total number of messages used" is…

Azure IoT Hub
Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,282 questions
asked 2025-02-24T14:40:13.5666667+00:00
DisplayName42 56 Reputation points
commented 2025-08-20T14:02:21.8666667+00:00
Zachary Cortese 0 Reputation points
1 answer One of the answers was accepted by the question author.

Azure IOT HUB TLS 1.0 ,1.1 to 1.2

In the Azure UI, will there still be an option to select TLS 1.0 or TLS 1.2 after August 31, 2025, or will only TLS 1.2 be available? If the option to select TLS 1.0 remains, how long will it be available, and during that period, will devices (clients)…

Azure IoT Hub
Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,282 questions
asked 2025-08-14T03:59:07.02+00:00
Santhosh Kumar S 20 Reputation points
commented 2025-08-19T07:14:26.0633333+00:00
Santhosh Kumar S 20 Reputation points
0 answers

IoT Hub with TLS 1.2 is accepting messages from devices without necessary cipher suites for some hours

The Advantech WISE4010/LAN module provides above cipher suites. These are not compatible with azure IoT Hub TLS 1.2. After switching from TLS 1.0 to 1.2 on IoT Hub for testing, the module was able sending messages for some hours till connection error…

Azure IoT Hub
Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,282 questions
asked 2025-08-12T08:51:29.78+00:00
Markus Fischer 0 Reputation points
edited a comment 2025-08-19T06:05:51.3233333+00:00
Manas Mohanty 9,655 Reputation points Microsoft External Staff Moderator
1 answer One of the answers was accepted by the question author.

iot-hub update operations shows error that another operation is in progress, waited a few days but the problem persists.

When updating the enrichment settings of an iot-hub I get the following error message: There was a problem updating your IoT hub to apply message enrichment settings. An unexpected error occurred while updating your IoT hub. Error message: Another update…

Azure IoT Hub
Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,282 questions
asked 2025-07-08T08:03:22.36+00:00
Dimitri 20 Reputation points
accepted 2025-08-12T09:54:23.3566667+00:00
Dimitri 20 Reputation points
0 answers

Our Azure IoT Update appears to be malfunctioning.

Good Day, For the last month we have been experiencing issues with Azure IoT Hub - Specifically the Update blade. We have created a new tag: ADUGroup: LoadAssistTestADU-ESP32S3-F16-R8, and flashed a new ESP32S3 based custom PCB, with it, the 'ADU…

Azure IoT Hub
Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,282 questions
asked 2025-07-20T17:15:09.2866667+00:00
Adrian Wreyford 65 Reputation points
commented 2025-08-08T02:10:24.4333333+00:00
Manas Mohanty 9,655 Reputation points Microsoft External Staff Moderator
2 answers One of the answers was accepted by the question author.

How to check total number of connected devices in IoT hub

Hello, First Im not a cloud engineer and we currently dont have one as of the moment so this is a problem for us. I would like to ask how to check the number of active devices currently connected to our IoT hub. Our devices reboots randomly everyday and…

Azure IoT Hub
Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,282 questions
asked 2025-02-04T05:08:25.6333333+00:00
Jester Bojorque 220 Reputation points
accepted 2025-08-06T08:11:08.9366667+00:00
Jester Bojorque 220 Reputation points
1 answer

Sending big-sized messages to IoT hub, which pattern is architecturally correct?

Hi,I have an edge device sending a request to IoT hub having 10MB size (because it contains base64 images) but this will burn the daily quota at a higher rate. I thought of uploading the images from edge device first to the blob and then sending URLs…

Azure IoT Hub
Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,282 questions
asked 2025-07-18T10:58:34.85+00:00
Najam ul Saqib 440 Reputation points
edited a comment 2025-07-22T14:53:28.7433333+00:00
Sander van de Velde | MVP 36,941 Reputation points MVP Volunteer Moderator
1 answer One of the answers was accepted by the question author.

Need help getting SNMP data from an OKI ES7470 MFP to Azure IoT

Hi everyone, Does anyone happen to know of a script that can pull data from a fairly old printer (OKI ES7470 MFP) via SNMP and push it to Azure IoT with minimal hassle? I tried getting some help from AI, but the result was kind of a mess. Thanks in…

Azure IoT Hub
Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,282 questions
asked 2025-07-17T15:55:58.6166667+00:00
Giacomo Maisano 20 Reputation points
accepted 2025-07-21T07:06:07.0866667+00:00
Giacomo Maisano 20 Reputation points
2 answers

Not able to connect to Azure IoT devices from a remote server, but can connect to them from my localhost.

In my application I am sending data to the azure iot devices. When I ran the application in my localhost, it ran fine and sent the data. But when I installed the application on a server, the connection is being refused all the time. How to solve this? I…

Azure IoT Hub
Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,282 questions
asked 2025-07-09T16:31:37.9633333+00:00
Suraj Kamtam 0 Reputation points
answered 2025-07-10T05:51:06.77+00:00
VSawhney 1,130 Reputation points Microsoft External Staff Moderator
1 answer One of the answers was accepted by the question author.

Getting 401 on REST call to IoTHub (on 'devicebound')

Hi Team, I want to send C2D from a web page. I am able to make REST call to IoTHub on 'events' but not on 'devicebound'. I am getting unauthorized 401 when I post on 'devicebound'. On 'events', I get 204 as expected and I see my message on built-in…

Azure IoT Hub
Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,282 questions
asked 2023-08-16T13:00:50.5833333+00:00
Aurovind Sagar Epari 95 Reputation points
edited a comment 2025-07-07T13:05:51.28+00:00
Nolan Roberts 0 Reputation points
1 answer

How to patch Reported Properties using HTTPS

Hello I am trying to patch the reported properties of my iot device into iot hub device twin using HTTPS, but currently when testing I am receiving an error stating both tags and desired properties cannot be null is there a way I can resolve this. As…

Azure IoT Hub
Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,282 questions
asked 2025-07-02T17:14:07.21+00:00
Peter Tran 0 Reputation points
commented 2025-07-04T06:50:41.9766667+00:00
Manas Mohanty 9,655 Reputation points Microsoft External Staff Moderator
1 answer

How can you make a device AMQP connection to IoT Hub without using UAMPQ as that is now deprecated?

I have created an initial prototype to connect from an IoT device to an IoT hub using UAMPQ based on other examples on the internet. The code below shows working code for this that was verified using Azure IoT Explorer. I attempted to then port the…

Azure IoT Hub
Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,282 questions
asked 2025-06-17T15:16:40.9466667+00:00
Richard Bostock 0 Reputation points
commented 2025-06-24T19:53:32.5666667+00:00
Manas Mohanty 9,655 Reputation points Microsoft External Staff Moderator
4 answers

[Azure RTOS Thread X version 6.1.9] _nx_secure_x509_pkcs1_rsa_private_key_parse returns NX_SECURE_PKCS1_INVALID_PRIVATE_KEY error

I am using an STM32H735 board with Azure RTOS (ThreadX version 6.1.9). I am trying to connect the board to an Azure IoT Hub Device configured with x.509 self-signed authentication type. I have created the X.509 self-signed certificate using openssl and…

Azure RTOS
Azure RTOS
An Azure embedded development suite including a small but powerful operating system for resource-constrained devices.
341 questions
Azure IoT Hub
Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,282 questions
asked 2024-08-29T03:11:35.2866667+00:00
Grant Hatamosa 5 Reputation points
answered 2025-06-24T01:12:55.86+00:00
Phillip Garcia 0 Reputation points
0 answers

TPM EK enrollment issue.

Hi, Getting error (Details: Endorsement key is invalid, or does not match the Enrollment. Error code: 400004) while enrolling TPM EK. we generate TPM EK >> [REDACTED]== Steps Followed : TPM (SLB9673) chip interface with esp32 with I2C…

Azure IoT Hub
Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,282 questions
asked 2025-06-12T11:39:26.84+00:00
Pratik Dongale 0 Reputation points
commented 2025-06-19T15:30:09.23+00:00
Sampath 3,865 Reputation points Microsoft External Staff Moderator
0 answers

How to Set Alert for Message Throttling

I would like to know if Azure IoT Hub provide an alert whenever the total message count is approaching the daily limit of the subscription? For example sending alert when approaching 70% or 80% of the daily limit. Having this alert will help us to…

Azure IoT Hub
Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,282 questions
asked 2025-06-17T08:20:57.4233333+00:00
John Wong Yek Hon 140 Reputation points
commented 2025-06-19T05:55:05.66+00:00
VSawhney 1,130 Reputation points Microsoft External Staff Moderator
1 answer One of the answers was accepted by the question author.

IOT Hub Multiple connections on single device

Background: We have multiple applications and windows services that run on our devices at any one time. We were hoping we could communicate to IOT Hub from each of these services to send and receive messages but ran into this problem:…

Azure IoT Hub
Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,282 questions
asked 2022-06-10T10:50:48.993+00:00
Ben Dimelow 21 Reputation points
commented 2025-06-06T07:45:41.36+00:00
Sander van de Velde | MVP 36,941 Reputation points MVP Volunteer Moderator