Thanks for your reply. But unfortunately it doesn't work for me. I have re-install my Macbook, no anti-virus system nor firewall is activate currently, just like a brand new computer, the hosts file is fine too. Would you please try to log in my account at your side so that you can directly solve the account problem. I have tried many different ways on my computer these days and i think it is a waste of time, it is actually the account problem. I paid the subscription, I can not use the program, I even reset my macbook, I tried to install it with different computers (Both windows and Mac), the computers have not installed any Adobe app before, so just like first installation. This is the first experience that I purchase a software, without using it once but i need to keep on solving such 'computer' problems for a few days already. May be your solution works for the account suddenly not work(but work initially), my case is the account is not work at the very first beginning. I hope you understand the difficulty here and please try to solve the account problem for me. Thank you very much!
Thanks for the update, I have already reviewed your account and there are no issues with your subscription or payment. It is a network issue and is not related to your operating system hence you do not need to reinstall the operating system.
Next step we can try is to connect to a different internet connection and try again.
If it still fails then can you please reach out to us via phone or chat here? Contact Customer Care.
Our product and tech experts will be able to help you out best! as they can hop on a remote session to troubleshoot this further.
Let us know if you have any questions. Thanks!