Hi Alexander Ambler,
Thank you for asking this question on the Microsoft Q&A Platform.
We are sorry to hear that you are experiencing issues accessing the sandbox.
Please be aware that there is a daily limit of 20 sandboxes available. Check your usage quota, and if the sandbox has already been activated but is now closed, reactivate it before proceeding.
We have successfully activated the sandbox, as shown in the screenshot provided below for your reference.
This situation can arise when our automated system identifies potential misuse of the platform, such as banned code or unexpected activities outside the lab. Once banned, all Microsoft Learn sandbox activations are restricted. You can use the appeal button to request a review. Our backend team will examine the lab activity and lift the sandbox block within 24-36 hours if the appeal is successful.
In the meantime, please attempt the troubleshooting steps outlined below for this issue:
Step 1: Sign out from all tabs in your current browser and clear the cache files. Then, try logging in again using your Learn ID credentials.
Step 2: Sign out from your current browser session and attempt to log in using an incognito or in-private window.
Step 3: Switch to a different browser and attempt to log in again.
Step 4: Try logging in with a new personal email account on the Learn path using a completely different browser.
If your problem persists, please don't hesitate to contact us along with the screenshot, and we will be happy to provide further assistance.
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