[Technical Question] Device provisioned with DPS always shown as "X509 self-signed" instead of "Certificate Authority"

Hello !

I try to set an Azure DPS with authentication type "x509 CA certificate". For testing, I'm using the iot-sdk-csharp and follow this [sample](https://github.com/Azure/azure-iot-sdk-csharp/tree/previews/v2/provisioning/device/samples/solutions/BestPracticeSampleX509).

Everything works except **IoT hub shown devices provisioned with DPS as "X509 self-signed" instead of "Certificate Authority"**.

With **devices directly created on IoT Hub (NOT via DPS), authenticated type are set to Certificate Authority.** This is the behavior I want to reproduce with devices created from DPS.

My DPS enrollment group settings:

Do you know what I have to change in DPS for my devices to appear with "Certificate Authority" authentication type ?

Thank you for your help.
Have a nice day.

Théo

Start with the linked BestPracticeSampleX509 sample and review the reported DPS enrollment group settings. Compare the authentication type shown for DPS-provisioned devices with devices created directly in IoT Hub, then determine whether a DPS setting or service behavior accounts for the difference. Done means identifying the required change or confirming the expected authentication type.

Written by the indexing model from the issue text.