About activating PS CC on two different computers with the same account.

check your account to verify your subscription is what you expect and to verify your adobe id (used in the next step), https://accounts.adobe.com/

if your account shows

a. your subscription is active,

1.  sign out and then back in to your cc desktop application using the same adobe id above to verify your subscription:  http://helpx.adobe.com/creative-cloud/kb/sign-in-out-creative-cloud-desktop-app.html

2.  if that fails, https://helpx.adobe.com/manage-account/kb/stop-creative-cloud-trial-mode-after-purchase.html

3.  if that fails, https://helpx.adobe.com/creative-cloud/kb/cc-reverts-to-trial.html

4.  if that fails, using a browser that allows popups and cookies,  contact adobe support during pst business hours by clicking here and, when available, click 'chat', http://helpx.adobe.com/x-productkb/global/service-ccm.html

if your account shows

b. you have no subscription and you're paying for one

1. using a browser that allows popups and cookies,  contact adobe support during pst business hours by clicking here and, when available, click 'chat', http://helpx.adobe.com/x-productkb/global/service-ccm.html