Thank you for contacting us via the Microsoft Q&A forum.
Upon reviewing your inquiry, it has come to our attention that you are encountering several obstacles while utilizing the learning app to access the Azure sandbox.
Regarding your inquiry about using Visual Studio Code (VS Code): It's unlikely that switching to VS Code would lead to issues with the tutorial. VS Code is a widely-used coding tool compatible with Azure. In fact, it might offer a more powerful platform for working with Azure compared to the learning app. Thus, proceeding with VS Code could be a beneficial alternative to enhance your learning experience.
To address your current authentication issue and get you back on track, here are some steps you can take:
1.Check Account Permissions and Re-login: There might be a temporary glitch with your account permissions. Please try logging out of MS Learn entirely and then signing back in. This simple step often refreshes your access and resolves such issues.
2.Clear Browser Cache and Cookies: Corrupted cache or cookies can sometimes cause access problems. I recommend clearing your browser's cache and cookies. After doing so, restart your browser and try accessing the sandbox again.
3.Incognito/Private Window: Attempt to access the MS Learn Sandbox in an incognito or private window to see if that helps resolve the issue.
4.Switch to a Different Browser: Try logging in again using a completely different browser.
5.Attempt logging in with a new personal Microsoft email account into the learn path using a completely different browser. If you don't have one, you can create a new free Microsoft account. Please note that you need to sign in with a Microsoft account, such as Office 365 or Outlook.com, for sandbox access.
If you're still facing the issue, please let us know in the comments. We're here to assist you.
If you find this information helpful, please consider clicking the "Upvote" and "Accept Answer" buttons on the post.