Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,334 questions
2 answers
How to connect Azure IoT hub?
Issue Details Devices are successfully connected to IoT Hub. Telemetry messages are being received (validated via IoT Hub metrics). Message routing is configured to forward data to Data Lake. However, no files/blobs are being created in the Data Lake…
Azure IoT Hub
asked 2026-05-14T18:18:56.38+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(147.20000000000002, 49%, 24%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EDS%3C/text%3E%3C/svg%3E)
Dhruvesh Sheladiya
0
Reputation points Microsoft Employee
answered 2026-05-15T23:38:50.4266667+00:00
kagiyama yutaka
2,590
Reputation points
1 answer
What is direct method feature in Azure IoT Hub? — Cloud invokes device actions
Description I am trying to understand the direct method feature in Azure IoT Hub, specifically how backend (cloud) applications can invoke actions on IoT devices and receive immediate responses. Environment Details Azure Service: Azure IoT Hub Feature:…
Azure IoT Hub
Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,334 questions
asked 2026-05-14T18:49:32.22+00:00
Dhruvesh Sheladiya
0
Reputation points Microsoft Employee
commented 2026-05-15T20:49:20.48+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(6.4, 51%, 10%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EKV%3C/text%3E%3C/svg%3E)
Karnam Venkata Rajeswari
2,795
Reputation points Microsoft External Staff
Moderator
1 answer
How does message routing work in Azure IoT Hub? — Rules route msgs to endpoints
Description I am trying to understand how message routing works in Azure IoT Hub, specifically how routing rules and queries are used to direct device messages to different endpoints based on conditions. Environment Details Azure Service: Azure IoT…
Azure IoT Hub
Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,334 questions
asked 2026-05-14T18:46:41.42+00:00
Dhruvesh Sheladiya
0
Reputation points Microsoft Employee
commented 2026-05-15T19:45:12.43+00:00
Karnam Venkata Rajeswari
2,795
Reputation points Microsoft External Staff
Moderator
1 answer
What is device twin in Azure IoT Hub? — JSON state for device sync
I am trying to understand the concept of device twins in Azure IoT Hub, specifically how they are used to maintain and synchronize device state between cloud applications and IoT devices using a JSON-based structure. Environment Details Azure Service:…
Azure IoT Hub
Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,334 questions
asked 2026-05-14T18:45:23.6433333+00:00
Dhruvesh Sheladiya
0
Reputation points Microsoft Employee
commented 2026-05-15T18:45:34.5833333+00:00
Karnam Venkata Rajeswari
2,795
Reputation points Microsoft External Staff
Moderator
1 answer
What protocols does Azure IoT Hub support? — MQTT, AMQP, HTTPS support
Description I am trying to understand the communication protocols supported by Azure IoT Hub for device-to-cloud and cloud-to-device messaging, and how each protocol behaves in different scenarios such as scalability, latency, and network…
Azure IoT Hub
Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,334 questions
asked 2026-05-14T18:22:28.25+00:00
Dhruvesh Sheladiya
0
Reputation points Microsoft Employee
commented 2026-05-15T18:14:55.2933333+00:00
Karnam Venkata Rajeswari
2,795
Reputation points Microsoft External Staff
Moderator
1 answer
How does Azure IoT Hub handle devices and what authentication does it use?
Question How does Azure IoT Hub handle devices and what authentication does it use? Description I am trying to understand how Azure IoT Hub manages device connectivity and authentication in an IoT solution, specifically how devices are registered,…
Azure IoT Hub
Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,334 questions
asked 2026-05-14T18:20:50.4566667+00:00
Dhruvesh Sheladiya
0
Reputation points Microsoft Employee
commented 2026-05-15T18:14:01.85+00:00
Karnam Venkata Rajeswari
2,795
Reputation points Microsoft External Staff
Moderator
1 answer
How is security managed in Azure IoT Hub? — SAS tokens & X.509 authentication used
Description I am trying to understand how Azure IoT Hub manages device-level security and authentication, specifically how mechanisms like SAS tokens and X.509 certificates are used to securely connect and authorize devices. Environment Details Azure…
Azure IoT Hub
Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,334 questions
asked 2026-05-14T18:43:38.0366667+00:00
Dhruvesh Sheladiya
0
Reputation points Microsoft Employee
commented 2026-05-15T18:08:41.78+00:00
Karnam Venkata Rajeswari
2,795
Reputation points Microsoft External Staff
Moderator
1 answer
What is IoT Hub integration? — Links to Event Hub, Storage
Description I am trying to understand how Azure IoT Hub integrates with other Azure services, such as Event Hubs and Storage, and how device data flows from IoT Hub to these downstream services. Environment Details Azure Service: Azure IoT Hub Feature:…
Azure IoT Hub
Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,334 questions
asked 2026-05-14T18:53:27.7366667+00:00
Dhruvesh Sheladiya
0
Reputation points Microsoft Employee
commented 2026-05-15T13:15:55.19+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(28.799999999999997, 15%, 12%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAV%3C/text%3E%3C/svg%3E)
Anshika Varshney
10,655
Reputation points Microsoft External Staff
Moderator
0 answers
What is IoT Hub monitoring? — Metrics, logs via Azure Monitor
Description I am trying to understand how monitoring works in Azure IoT Hub, specifically how metrics and logs are collected and analyzed using Azure Monitor to track system health, performance, and device activity. Environment Details Azure Service:…
Azure IoT Hub
Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,334 questions
asked 2026-05-14T18:55:13.23+00:00
Dhruvesh Sheladiya
0
Reputation points Microsoft Employee
answered 2026-05-15T09:55:19.6366667+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, 28.999999999999996%, 19%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJ%3C/text%3E%3C/svg%3E)
John
15
Reputation points
0 answers
What is IoT Hub scaling? — Units auto-scale for throughput
I am trying to understand how Azure IoT Hub scaling works, specifically how throughput is managed using units and how the system handles increasing load as the number of devices and messages grows. Environment Details Azure Service: Azure IoT Hub …
Azure IoT Hub
Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,334 questions
asked 2026-05-14T18:48:07.05+00:00
Dhruvesh Sheladiya
0
Reputation points Microsoft Employee
commented 2026-05-15T06:55:02.8966667+00:00
Anshika Varshney
10,655
Reputation points Microsoft External Staff
Moderator
1 answer
How is security managed in Azure IoT Hub? — SAS tokens & X.509 authentication used
Description I am trying to understand how Azure IoT Hub manages security for device connectivity and communication, specifically how authentication mechanisms like SAS tokens and X.509 certificates are used to secure device-to-cloud…
Azure IoT Hub
Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,334 questions
asked 2026-05-14T18:24:00.4566667+00:00
Dhruvesh Sheladiya
0
Reputation points Microsoft Employee
commented 2026-05-14T18:44:57.7266667+00:00
Karnam Venkata Rajeswari
2,795
Reputation points Microsoft External Staff
Moderator
1 answer
Azure IoT data is not syncing with data hub
General Issue Understanding Why is my Azure IoT device telemetry not reaching the data hub? What are common reasons for IoT data not syncing from IoT Hub to downstream services? How can I verify if data is being ingested into Azure IoT Hub but not…
Azure IoT Hub
Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,334 questions
asked 2026-05-13T17:11:57.3933333+00:00
Dhruvesh Sheladiya
0
Reputation points Microsoft Employee
answered 2026-05-14T16:12:44.6033333+00:00
Vinodh247
42,371
Reputation points MVP
Volunteer Moderator
1 answer
Azure IoT data lake connection issues – data not flowing from IoT Hub to Data Lake
Title Azure IoT data lake connection issues – data not flowing from IoT Hub to Data Lake Description I am facing issues connecting Azure IoT Hub with Azure Data Lake, where device telemetry is being sent successfully to IoT Hub but is not appearing in…
Azure IoT Hub
Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,334 questions
asked 2026-05-13T17:41:56.6966667+00:00
Dhruvesh Sheladiya
0
Reputation points Microsoft Employee
answered 2026-05-14T06:34:29.57+00:00
Sedat SALMAN
14,530
Reputation points MVP
1 answer
One of the answers was accepted by the question author.
How is device twin data telemetery data on built in endpoint secured in IoTHub
We have a requirement to store data at rest encrypted. I cannot find documentation of how the data in IoTHub is stored: I found these questions: https://stackoverflow.com/questions/65682085/store-secrets-in-devicetwin …
Azure IoT Hub
Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,334 questions
asked 2026-05-12T14:18:55.47+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, 24%, 11%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMF%3C/text%3E%3C/svg%3E)
Mike Finch
40
Reputation points
accepted 2026-05-13T19:54:37.0266667+00:00
Mike Finch
40
Reputation points
2 answers
Request to Update Allowed Regions Policy for Azure IoT Hub Deployment
Hello, I hope you are doing well. I am currently attempting to create an instance of Azure IoT Hub, but I am unable to proceed due to a restriction in the allowed regions policy. The current policy allows deployment only in the following regions: …
Azure IoT Hub
Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,334 questions
asked 2026-05-05T18:32:58.85+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(281.6, 49%, 37%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAM%3C/text%3E%3C/svg%3E)
Ahmed Mustafa
0
Reputation points
commented 2026-05-08T03:37:03.3366667+00:00
Anshika Varshney
10,655
Reputation points Microsoft External Staff
Moderator
1 answer
Azure IotHub TLS 1.2 Supported cipher suites
Tonight we encountered an issue with our IotHub where ~1500 devices could not connect anymore. Our IotHub is currently operating under a temporary exception for legacy TLS 1.0 version. Only then we noticed that this subset of our devices support TLS1.2…
Azure IoT Hub
Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,334 questions
asked 2026-04-22T08:29:40.3266667+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(9.6, 13%, 10%)' 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)
Georg Sieber
45
Reputation points
edited an answer 2026-05-06T17:13:33.39+00:00
Manas Mohanty
16,755
Reputation points Microsoft External Staff
Moderator
2 answers
One of the answers was accepted by the question author.
Azure IoT Hub SAS token authentication – what username should be used for connection?
Hello Team, I am working with Azure IoT Hub and using SAS token–based authentication for connecting to the hub. The SAS token generation part is already resolved, but I need clarification specifically regarding the username that should be used during the…
Azure IoT Hub
Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,334 questions
asked 2026-04-27T07:00:36.8766667+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(28.799999999999997, 27%, 12%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ERD%3C/text%3E%3C/svg%3E)
Revati Dharmadhikari
20
Reputation points
accepted 2026-05-04T11:41:47.6833333+00:00
Revati Dharmadhikari
20
Reputation points
1 answer
Microsoft.DeviceUpdate RP stuck in 'Registering' state — all instance creates fail with InternalServerError
We are unable to create any new Microsoft.DeviceUpdate/accounts/instances resources in our subscription. Every attempt — via Bicep, ARM, Azure CLI, and the Azure Portal — fails with the same opaque error: { "code":…
Azure IoT Hub
Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,334 questions
asked 2026-04-30T18:27:03.86+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(147.20000000000002, 74%, 24%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EKK%3C/text%3E%3C/svg%3E)
Kensei Kawamura
80
Reputation points Microsoft Employee
answered 2026-05-01T00:54:25.2+00:00
Anshika Varshney
10,655
Reputation points Microsoft External Staff
Moderator
0 answers
Join: Microsoft Azure Q&A Champions Program
The Microsoft Azure Q&A Champions Program recognizes and empowers a global community of internal and external Azure experts who help customers succeed by providing high-quality, trusted answers on Microsoft Q&A. The program scales expert led…
Azure IoT Hub
Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,334 questions
asked 2026-04-30T18:50:31.2633333+00:00
Ashley Swearingen
0
Reputation points Microsoft External Staff
Moderator
answered 2026-04-30T18:50:46.0333333+00:00
Q&A Assist
2 answers
Iot edge device went offline suddenly as on Apr 18 11:00 GMT+10
My iot edge devices connected to iot hub went offline all of a sudden, is there any maintenance activity going on in Azure end affecting these connections. Please let me know how to resolve the same.
Azure IoT Hub
Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
1,334 questions
asked 2026-04-18T03:55:00.3733333+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(297.6, 28.000000000000004%, 38%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EVP%3C/text%3E%3C/svg%3E)
Vishnu Priya
5
Reputation points
answered 2026-04-25T10:44:57.9733333+00:00
Anshika Varshney
10,655
Reputation points Microsoft External Staff
Moderator