Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,226 questions
1 answer
Stream Analytics job does not stream the data to the database
I have a Python script that sends data to the IoT Hub using MQTT. A message routing configuration is set up to route the data to a Blob storage, and this part is working as expected—I can see the data in the storage. My next goal is to route the data to…
asked 2025-01-17T14:57:57.25+00:00
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Klajderic Aljosa HSLU I
0
Reputation points
answered 2025-01-17T22:59:46.1466667+00:00
Sander van de Velde | MVP
34,281
Reputation points MVP
1 answer
How to remove old / nonexistent Tag from Device Twin
I use IoT Hub to test MQTT connectivity with my company's hardware. I look at tag data I'm sending by using Device Twin (to verify the data was sent to Azure). If I change the tags I'm sending - the Device Twin still shows old tags (with old data) that…
asked 2025-01-10T18:08:00.7633333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(240, 25%, 33%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJM%3C/text%3E%3C/svg%3E)
Jeff Marcum
0
Reputation points
commented 2025-01-14T23:02:51.67+00:00
Sander van de Velde | MVP
34,281
Reputation points MVP
2 answers
Azure IoT Edge - Device To Cloud message size error
I have an exception when an IoT edge module sends a message to the IoT Hub - MessageTooLargeError: Message size is greater than 256KiB. Question: Will a higher tier allow for a larger size? Would not an edge module break it down to smaller chunks…
asked 2025-01-13T20:29:01.3+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(198.4, 75%, 29%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EGS%3C/text%3E%3C/svg%3E)
Garapati, Sri Kishan
0
Reputation points
answered 2025-01-14T12:55:34.9766667+00:00
Sander van de Velde | MVP
34,281
Reputation points MVP
2 answers
SAS token mismatch on Azure DPS with Azure IoT Edge
Hi, I have a recent issue with DPS registration requests, giving me error " {"Message":"{"errorCode":401002,"message":"The specified SAS token has an invalid signature. It does not match either the primary or…
asked 2025-01-03T14:33:14.6666667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(188.79999999999998, 71%, 28%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ELJ%3C/text%3E%3C/svg%3E)
LALANNE Jeremie - CELLENZA
6
Reputation points
answered 2025-01-08T12:56:48.82+00:00
LALANNE Jeremie - CELLENZA
6
Reputation points
1 answer
One of the answers was accepted by the question author.
Can IoT Hub Route D2C Messages to Service Bus in VNET?
I have a IoT Hub that must be public facing, while I want to have a Service Bus that only allow private access, where my App Services in the VNET will then consume the messages from Service Bus. Now, the question is am I able to route the D2C messages…
asked 2024-11-15T08:21:58.06+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(236.8, 1%, 32%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJW%3C/text%3E%3C/svg%3E)
John Wong Yek Hon
120
Reputation points
accepted 2025-01-06T07:56:29.48+00:00
John Wong Yek Hon
120
Reputation points
1 answer
Event Hub from another Subscription not visible for IoT Hub data route endpoints
Im trying to pass telemetry data from an IoT Hub to an event hub residing in another subscription, under same tenant/directory. I have created a managed identity, and assigned both services to the identity with Subscription-level Owner roles and…
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2 answers
Unable to Register Devices Using DPS Enrollment Group (401 Unauthorized)
We are encountering issues while attempting to register devices using an enrollment group in Azure IoT Device Provisioning Service (DPS) with symmetric key authentication. Despite following all the documented steps, the device registration fails with an…
asked 2024-12-23T17:24:53.6033333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(99.2, 6%, 19%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EA%3C/text%3E%3C/svg%3E)
Allen
0
Reputation points
answered 2024-12-24T10:06:38.2766667+00:00
Sander van de Velde | MVP
34,281
Reputation points MVP
1 answer
How to enable CORS for IOT Hub service
I have trouble connecting to the IOT Hub from a webassembly app. It reports in the exception: Operation is not supported on this platform I think it's a CORS problem, since I got the same exception accessing a different website, which resolved when…
asked 2024-12-18T01:29:27.1433333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(92.8, 1%, 18%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EHB%3C/text%3E%3C/svg%3E)
Heinrich Braasch
0
Reputation points
commented 2024-12-20T18:25:22.9+00:00
Sander van de Velde | MVP
34,281
Reputation points MVP
1 answer
How to send messages from Iot Edge Module to Storage Account through route?
I have an IoT Edge Module filtermodule which sends telemetry using send_message (docs) with IoTHubModuleClient every minute. When I run this module, the IoT Hub message counter in the portal is incrementing. Also, I used this route in the IoT Edge Hub…
asked 2024-12-16T13:29:02.73+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(102.4, 94%, 19%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EPK%3C/text%3E%3C/svg%3E)
Pim Klaassen
0
Reputation points
answered 2024-12-16T16:54:43.7166667+00:00
Sander van de Velde | MVP
34,281
Reputation points MVP
1 answer
One of the answers was accepted by the question author.
IoT Hub Continues to Send Events After Device Deletion
Hi Everyone, I have an issue with IoT Hub, Could you help ? Events such as TwinChangeEvents and DeviceLifecycleEvents are routed from IoT Hub to Event Hub. However, after deleting the deviceId (S5_U0_15312) created in 2016, IoT Hub still sends…
asked 2024-12-11T08:29:35.52+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(150.4, 27%, 24%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ETT%3C/text%3E%3C/svg%3E)
Tuan Tran
21
Reputation points
commented 2024-12-12T19:40:02.2666667+00:00
Sander van de Velde | MVP
34,281
Reputation points MVP
1 answer
Is it possible to access the SSH server on Yocto via device stream?
A customer asked me if it was possible to log in via SSH via an Azure server. I found an article that said that Azure IoT HUB has a feature called Device Stream, which makes it possible. Can this feature be configured in Yocto? Please tell me how.
asked 2024-12-06T06:27:09.0833333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(19.2, 46%, 11%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EA%3C/text%3E%3C/svg%3E)
高橋 文貴
0
Reputation points
commented 2024-12-09T19:13:30.23+00:00
Sander van de Velde | MVP
34,281
Reputation points MVP
1 answer
IotHub custom endpoints, 9 of 10 used, Azure portal keeps failing to create 10th
Good day, Been trying over and over for quite some time to create the 10th custom endpoint in our IotHub, in the Azure Portal. I keep getting an internal error and told to contact support, but don't have a support plan. We are not on the free tier but…
asked 2024-12-09T09:07:56.65+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(204.8, 76%, 29%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAW%3C/text%3E%3C/svg%3E)
Adrian Wreyford
45
Reputation points
answered 2024-12-09T18:45:33.94+00:00
Sander van de Velde | MVP
34,281
Reputation points MVP
1 answer
File upload issue via iot hub with new azure c sdk v1.14.0
Hi, I was using azure c sdk version 1.11.0 on my esp32 board, with that connection to iot hub using DPS service x509 certificates works fine. Blob storage is also configured with iot hub. File upload also works fine. Recently I have updated the azure c…
asked 2024-09-09T06:30:37.3966667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(192, 25%, 28%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESV%3C/text%3E%3C/svg%3E)
Singh, Vineet Prakash (ext)
5
Reputation points
commented 2024-12-09T11:29:53.02+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(236.8, 83%, 32%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESG%3C/text%3E%3C/svg%3E)
Shekhar Gupta
0
Reputation points
1 answer
[duplicate] ELMS: how to save module logs to blob storage?
please cross-refer to this post: https://learn.microsoft.com/en-us/answers/questions/2123832/elms-how-to-save-module-logs-to-blob-storage I apologize for the troubles, I had connectivity issues with the forum.
asked 2024-11-27T10:35:17.35+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(76.8, 61%, 17%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EM%3C/text%3E%3C/svg%3E)
Mistyron
25
Reputation points
edited the question 2024-12-09T05:18:37.9866667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(153.6, 24%, 24%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ENM%3C/text%3E%3C/svg%3E)
navba-MSFT
27,340
Reputation points Microsoft Employee
1 answer
how to use ELMS to upload module logs to blob
Please see the reported issue on Azure-Samples GitHub: https://github.com/Azure-Samples/iotedge-logging-and-monitoring-solution/issues/36
asked 2024-12-02T17:37:18.63+00:00
Mistyron
25
Reputation points
answered 2024-12-05T17:42:25.17+00:00
Amira Bedhiafi
27,601
Reputation points
0 answers
Deployment error when trying to enable dead-lettering on an event subscription in Azure
Hi, We configured an event subscription (webhook call) on the system topic of an IoT hub event grid to relay events to another system. It works okay in all environments but we noticed some failed event deliveries in Prod, only a fraction of the total IoT…
asked 2024-12-05T16:27:16.38+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(224.00000000000003, 97%, 31%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EGF%3C/text%3E%3C/svg%3E)
GERARDIN Frederic
0
Reputation points
asked 2024-12-05T16:27:16.38+00:00
GERARDIN Frederic
0
Reputation points
1 answer
How to change networking to connect IoTHub to CosmosDB in private subnet
Hey community! The question: How do I connect my Azure IoTHub to my CosmosDB in private subnet? How I can change the CosmosDB networking/firewall settings to accept traffic coming from a (public) IoTHub service endpoint? Brief description: I have an…
asked 2024-11-07T04:48:20.6966667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(48, 20%, 14%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EQ%3C/text%3E%3C/svg%3E)
Quincy
10
Reputation points
answered 2024-11-30T05:46:08.3666667+00:00
Andriy Bilous
11,621
Reputation points MVP
0 answers
Deploying Defender for IoT Sensor in Azure OT Lab Environment
Hello, I am exploring the use of Microsoft Defender for IoT in my OT lab environment, which is hosted in Azure. My lab setup includes the following resources: OpenPLC SCADA BR FactoryIO Kali Linux I would like to know if it is possible to deploy a…
asked 2024-11-28T21:22:53.3066667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(208, 91%, 30%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EHT%3C/text%3E%3C/svg%3E)
Houghton, Tristan
0
Reputation points
edited the question 2024-11-28T21:32:18.54+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(12.8, 76%, 11%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EV%3C/text%3E%3C/svg%3E)
VarunTha
11,080
Reputation points Microsoft Vendor
1 answer
device connectivity issue when using TLS
I try to send mqtt messages to my Azure IoT hub using port 8883 and TLSv1.2. I uploaded CA certficate (Digicert Global Root G2) in my device, and use SAS authentication for device (client authentication). My hub's monitoring section shows there are…
asked 2024-10-31T15:18:12.33+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(252.8, 89%, 34%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESM%3C/text%3E%3C/svg%3E)
somayeh mahmoodi
0
Reputation points
commented 2024-11-27T19:00:16.1733333+00:00
Sander van de Velde | MVP
34,281
Reputation points MVP
3 answers
One of the answers was accepted by the question author.
Can not provision devices with DPS to one iot hub but other works fine
Hi, I want to use DPS to provision my devices to a particular iot-hub when the provisioning script terminates with: # python provision_x509.py Traceback (most recent call last): File…