I am upgrading my Windows 7 Ultimate Edition to Windows 8 Professional with a product key. I've tried the site "Upgrade to Windows 8 with only a product key", and I've tried everything, I've changed the networks, it still says, "We Can't Connect Right Now", is that a problem with my product key?: XKY4K-XXXXX-8F6PE-XXXXX-CRYQH

Hi,

I made a search on the Internet, found this key: XKY4K-2NRWR-8F6P2-448RF-CRYQH. I doubt this should the key you use. As this key has already been leaked, it should locked by remote server. If you want to upgrade your system to Windows 8 or Windows 8.1, please refer to the link below to buy these product.

http://www.microsoftstore.com/mssg/en-sg/store/windows