@Hodge, Greg Welcome to Microsoft Q&A Forum, Thank you for posting your query here!
Based on the error message it's unable to pass on some of the required paramaters which is why you got TimeOut message.
Please refer to this article: https://learn.microsoft.com/en-us/troubleshoot/azure/virtual-machines/troubleshoot-deployment-new-vm-windows
Issue: Custom image; provisioning errors
Understand common error messages when you manage virtual machines in Azure
If the issue still persist, Please share the screenshot of the error message?
Please let us know if you have any further queries. I’m happy to assist you further.
Looking forward for your reply!
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