Hi Andrew Rowley,
Thank you for reaching out to us on the Microsoft Q&A platform. We are really sorry that you are facing trouble in completing Unit 3: Create an Azure virtual machine in Azure. From our end we were able to complete the exercise successfully.
Please try the following steps:
- Log out from all Microsoft accounts in your browser, clear the cache and try to login to your Learn account using the proper credentials.
OR
- Try to log-in to your Learn account using a private window.
Please try to activate the sandbox and retry the exercise. If the issue persists, please post a screenshot of the error (Note: Please conceal all your privacy details before posting) and we will try to help you.
Thank you.