Hey, I am also having this problem. Whenever I try to install openIV it always says my installation has been cancelled. I have looked it up and many people are having this problem. It seems like my ISP (ATT) is for some reason blocking this site. I can use a proxy server to access the site but the installer still gives me the same error when I use a VPN. I would also request someone to upload their core files as well if you can.