If you are experiencing issues related to expired volume serial numbers for Creative Cloud for enterprise, see this article for more information.
Test your internet connection
Make sure your subscription is activated
Confirm your account information
Confirm that your credit or debit card number, expiration date, billing address, and phone number are entered correctly, without spaces or dashes. Get help with updating your billing info.
Using a corporate card? Be sure you’re using the name and billing address of the cardholder, not your own. Check with the cardholder or your accounting department to verify the correct name and billing address.
If prompted, enter your birth date and click Update. If your birth date is not accepted, your entered age does not meet CC’s eligibility requirements. See: Error: You are not eligible to use Creative Cloud.
Confirm your computer settings
If you purchased an English-only subscription, make sure that the default language setting in Creative Cloud desktop app is English (International).