Source-Forge, The huge open-source software repository recently has banned some countries from downloading free and open-source softwares from their servers. However there’s a quick trick which you can download the files directly from source-forge mirrors, bypassing that IP address check.
The last part, marked as red, shows the mirror you’re going to download from. Turn the URL into something like this :
And it will download the file directly. In addition, some mirrors are not accessible because of routing path problems. I usually use “kent” as my mirror.