Deactivate CS 5.5 Web Premium - internet connection message

See here:

https://helpx.adobe.com/x-productkb/policy-pricing/activation-network-issues.html

If that doesn't work, please go to Adobe Customer Service and only ask to have your activations reset (Make sure to sign in to your Adobe account first and allow popups and cookies on your browser. You may not be able to see the chat window if using a VPN.):
https://helpx.adobe.com/contact.html?rghtup=autoOpen will automatically open the chat window.
Type "Agent" in the chat box to bypass the chatbot and be connected to a person.

or Twitter:
https://twitter.com/AdobeCare