If you are facing a download error then please see Sign in, activation, or connection errors | CC, CS6, CS5.5 - http://helpx.adobe.com/x-productkb/policy-pricing/activation-network-issues.html. You may also want to try an alternate Internet connection.
Are you on a managed network or is this a home network? If it is a home network please try the steps listed in the above mentioned link.
Can you please try apply the updates manually: http://prodesigntools.com/adobe-cc-updates-direct-links-windows.html.
Note: Please follow the very important instructions before download.
Regards
Rajshree