If this problem apears, it should always apear on your system !
The thing is easy:
to prevent leeching from my server, I installed a little mod to the apache, which checks your http referer, if you want to access the folder ´w*w.cdrsoft.cc/download ...
If you come from another site, maybe a leecher site, you will be redirected to the frontpage !
So if you always are bounced back, you should shutdown tools, which could kill the http referer out of your browser !
This won´t be the Antivirussoftware, keep it running ..
But maybe webwasher stuff, firewalls and so on ..
Disable them, press the button, download, start the stuff again ..