Hey there, I found a solution. I was previously facing the exact same problem as you and was very disappointed, now that I finally solved it, I made an account to share it lol.
Most likely it's because of your ISP, I have no idea why though. I just go a VPN ( HMA ) and connected to USA, then tried downloading again and everything went fine. Just use some free VPN if you don't mind the slow speed. Sorry if it's against the rules to use vpn on forums etc.