Add the following lines to the bottom of the document to stop the software from looking for the dead servers:
When an offline machine needs to be activated, it goes through an "exception process". Because the software cannot reach Adobe's servers directly to verify your serial number, it generates a unique alphanumeric . You take this code to a connected computer, feed it into Adobe's activation portal, and receive a Response Code in return, which you then plug back into Illustrator CS6 to unlock the software. The Standard Workflow adobe illustrator cs6 offline activation response code fix
Ultimate Guide to Adobe Illustrator CS6 Offline Activation & Response Code Fixes Add the following lines to the bottom of
Older systems may be missing the GlobalSign Root CA certificate, which is required for the activation process. To verify: The Standard Workflow Ultimate Guide to Adobe Illustrator
If the offline activation window is blank, it means the application cannot render the Adobe web page.