Fast DL broken?

All of a sudden my FastDL isn’t downloading… I’ve not changed anything, but it stopped working randomly…

When joining the server I get the HTTP DOWNLOAD ERROR… But if I follow that link to my fastdl server, it downloads in the browser… So the file IS there… Why could this be happening? It’s downloaded the files just fine, I’ve reinstalled gmod and connected to my server several times in the past without issues. Today I tried and nothing is downloading other then workshop files.

[editline]20th June 2014[/editline]

Wow…

Turns out the problem was Comodo internet security. After uninstalling, everything downloaded just fine to me.