Please help! The problem with the activation.

Good day! Please help! The problem with the activation. I have the  original disc and the key to the program Photoshop Elements 12, was  lined on one computer, and I need to install it on the new. Deactivation  I did was uninstalled on the old computer. Can not pass the activation,  provides: "no connection to the Internet or to check the time", and  checked the clock what to do help! !