AVD cannot licence Windows Server 2019 CIS Image

Question

Hi,

We're having issues with licencing on Windows Server 2019 CIS image using Azure Virtual Desktop.

The machine is Azure AD joined, and we can see it attempting to register at kms.core.windows.net over port 1688, a 7 packet each way communication takes place and finishes with a tcp reset from client. I can't see any other traffic being blocked from the machine in question.

We've deployed a raft of other Windows Servers and never encountered this issue, therefore initial thoughts are that this is something specific to either AVD or this Image.

Thanks,

Neil.

Answer 1

Hi Neil

Is the image you are using for this one of the default CIS Images available in the Azure Marketplace:

https://azuremarketplace.microsoft.com/en-us/marketplace/apps?search=center%20for%20internet%20security&page=1&filters=partners%3Bpay-as-you-go

Thanks

Michael

Answer 2

Hi @Neil Campbell

Thank you for asking this question on the **Microsoft Q&A Platform. **

If you could validate the connection in kms.core.windows.net:1688, run the following command.

1..12 | ForEach-Object { Invoke-Expression "$env:windir\system32\cscript.exe $env:windir\system32\slmgr.vbs /ato" ; start-sleep 5 }  

Source: https://learn.microsoft.com/en-us/troubleshoot/azure/virtual-machines/troubleshoot-activation-problems

If after following the troubleshooting guide you still have the issue, please open a Support Request https://azure.microsoft.com/en-us/support/create-ticket

Hope this helps!

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