Hi Kevin Andrews,
Thank you for reaching out to us on the Microsoft Q&A forum. We see that you are facing an issue with Configuring Cloud Shell for sandbox access.
I believe the problem has been resolved. Please log out and login back and try to activate the sandbox.
We have checked from our end we are able to access, please refer the below screenshot for your reference.
If still you’re facing the issue here are some general steps to troubleshoot:
1.Refresh the page: Reload the browser to see if it resolves the problem.
2.Clear browser cache: Delete cached data and try accessing the sandbox shell again.
3.Use a different browser: Try another web browser to check if the issue is browser specific.
4.Firewall and proxy settings: Verify network settings to ensure they're not blocking the connection.
5.Incognito/Private mode: Open the sandbox shell in incognito/private mode to rule out browser-related issues.
If the information is helpful, please accept the answer by clicking the "Accept Answer" on the post. If you are still facing any issue, please let us know in the comments. We are happy to help you.