The issue is we can't even get to the stage of entering the Adobe ID, it just spins away merrily when you click the Sign In Now button. We have uninstalled all the CS6 software and re in stalled it and it still has the same problem, we can't get to the screen to enter the Adobe ID, meanwhile it is slowly counting down the days until we can't use our software.
I had the same issue & contacted Tech Support several times before finally they found that it must be my "corporate network" setup.
This is in part becuase Adobe is now requiring that you use your Adobe ID to register CS6. See the link below:
Adobe ID Required for Photoshop CS6 Beta and Upcoming CS 6 Products
After several "live" chats with Adobe support they gave me a link to directions for a work around. The problem was our "corporate network" setup, so this will occur on each machine that you install CS6 on while connected to a "corporate network".
To work around the CS6 registration error on a "corporate network" you must do one of the following: disable the proxy server, disconnect from the internet completely to use the Offline Activation option, or use an alternate outside internet source to complete the CS6 registration.
Adobe Tech Support directed me to a forum on how to disable the proxy server, but really all you need to do is unplug your internet source, and then you can generate the codes that are needed to complete the registration with the Offline Activation option. This worked for me, I'm all set now.
See the links below:
Forum link from Adobe Tech Support