Azure Virtual Desktop deployment error message: AAD Join failed with status code: -2145648526.

Question

Hello,

I am trying to create Azure Virtual Desktop by only utilizing Azure AD (No AD DS or Azure AD DS). In the documentation, I found that it should be possible:

However, when I try to deploy my Azure Virtual Desktop I encounter this issue:

With error message like this:

{
    "status": "Failed",
    "error": {
        "code": "VMExtensionProvisioningError",
        "message": "VM has reported a failure when processing extension 'AADLoginForWindows'. Error message: \"AAD Join failed with status code: -2145648526. Device successfully unjoined from Azure AD.\"\r\n\r\nMore information on troubleshooting is available at https://aka.ms/vmextensionwindowstroubleshoot "
    }
}

Do you have any idea what could be wrong? I have tried to find a solution but so fat I have been unsuccessful...

Thank you

Gregor

Answer 1

Hi

try creating your Host Pool first without creating Session Hosts. Then do the following:

• Navigate to Host Pool -> Select the Hostpool where Azure AD joined VMs are located.
• Click on RDP properties.
• Click on … button and select Advanced button.
• Enter targetisaadjoined:i:1 as the last custom properties and click Save.

Once this is done, go back in and create your Session Hosts in AVD as AAD-joined devices. You can follow my blog post here which may help:

https://michaeldurkan.com/2022/05/17/100daysofcloud-day91-azurevirtualdesktopdemo-part1/

Hope this helps,

Thanks

Michael Durkan

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