Can not see devices in Azure IoT Hub

Question

Can not see devices in Azure IoT Hub

Lars 5

When I try to view my devices I get an error "A problem occurred loading devices.". I have been able to view and add devices before. How to solve this?

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AshokPeddakotla-MSFT 35,941 Reputation points

2023-02-10T09:45:58.72+00:00

Lars Welcome to Microsoft Q&A forum!

Can you confirm which region your IoT Hub is deployed? Are you seeing this error in any specific IoT Hub or all IoT Hubs in your subscription?

As Sander mentioned, this could be transient failure. I would suggest you wait for sometime and check back or clear your browser cookies, cache and history or try in-private mode and update if that solves your issue. You can also log out and re-login to Azure Portal and see if there is any difference.
QuantumCache 20,351 Reputation points

2023-02-16T23:38:05.72+00:00

Hello Lars, Just checking on this thread.

If this answers your query, do click **Accept Answer** and **Yes** for this answer as helpful. And, if you have any further query do let us know.

So that we can close this discussion!

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AshokPeddakotla-MSFT 35,941 Reputation points

2023-02-10T09:45:58.72+00:00

Lars Welcome to Microsoft Q&A forum!

Can you confirm which region your IoT Hub is deployed? Are you seeing this error in any specific IoT Hub or all IoT Hubs in your subscription?

As Sander mentioned, this could be transient failure. I would suggest you wait for sometime and check back or clear your browser cookies, cache and history or try in-private mode and update if that solves your issue. You can also log out and re-login to Azure Portal and see if there is any difference.
QuantumCache 20,351 Reputation points

2023-02-16T23:38:05.72+00:00

Hello Lars, Just checking on this thread.

If this answers your query, do click **Accept Answer** and **Yes** for this answer as helpful. And, if you have any further query do let us know.

So that we can close this discussion!

Answer 1

Sander van de Velde | MVP 35,566 MVP

Hello @Lars,

This issue you experience is seen before. This is mainly due to the Azure Portal not being on par with the service.

The IoT Hub itself is usually/probably running fine.

Normally, it is fixed within hours (I agree, this should be working forever).

I recommend trying out another tooling like Visual Studio Code, the IoT Explorer, or using the Azure CLI.

If this does not work, please issue a support ticket to Azure.

If the response helped, do "Accept Answer". If it doesn't work, please let us know the progress. All community members with similar issues will benefit by doing so. Your contribution is highly appreciated.

Mehul Vithalbhai Hirpara 0 Reputation points

2023-03-01T11:31:42.6833333+00:00
Today, I'm facing the same issue and the device is part of US Central. It has been there since last few months. Initially, I started facing errors with Azure Python SDK with the following error:

ConnectionFailedError was raised: Could not connect to IoTHub

Later I checked on the portal and same issue - Unable to retrieve devices. Please ensure your network connection is online and networking settings allow connections from your IP address.

Is this because of the following migration requirement?

Migrate IoT Hub resources to a new TLS certificate root
Sander van de Velde | MVP 35,566 Reputation points MVP

2023-03-01T14:17:51.3833333+00:00

Hello @Mehul Vithalbhai Hirpara,

if you have trouble connecting your devices, check this troubleshooting page first:

Like every Azure service, you need to be prepared for 'throttling'. This means you need to check for certain errors which are raised if a service cannot handle a message AT THAT TIME.

Normally this means a simple retry.

It could be there is a larger challenge for your devices regarding the TLS certificate renewal. This means your device must be able to load the new Digicert certificate.

Check this blog post for more details.
QuantumCache 20,351 Reputation points

2023-03-01T23:16:30.7766667+00:00

Hello @Mehul Vithalbhai Hirpara,

If possible, please submit a new question on this forum with more detailed information.

We would be happy to assist with your scenario.

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Can not see devices in Azure IoT Hub

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