Can't download battlenet or Hearthstone (Network error)

I want to install Hearthstone on my Mac (latest version of Catalina) but the download just doesn’t seem to work.

If I try downloading Battlenet or Hearthstone the download is first of all really slow (70kb/s) even though my internet is quite fast and it stops at about 1mb saying “Failed - Network error”. I tried using different browsers and download at different times but nothing seems to work.

Hey, Raykage! Could you try the suggestions on this post? Feel free to skip some of the steps that you’ve already tried such as the different browser.