Diablo 2 - There was a problem authenticating your download

I get the above message when downloading Diablo 2 from the official installer I got from account.blizzard com games#classic-game-accounts. It also says elsewhere on the downloader “This download is not authorized” but I haven’t even been asked for a cd key yet.

What is going on?

Hello Malagant!

Please follow these steps :slight_smile:

I solved this issue by opening “internet options” and restoring the security slider for “Internet” from high back to Medium-high. This is not default but easily overlooked if you ever changed it.

I am having the same issue, there is no resolution by running in admin mode or any other registry edits or deletions.