adrianat60985869 - did you manage to find an answer to this problem? I'm guessing Rajashree's response was not helpful...
I am having the exact same situation on Mac OSX and am unable to complete my work. I've tried re-starting the computer, and have checked that the license is correctly assigned.
Have you "trashed" your preferences?
Here is a link that will show you the two methods for trashing the prefs.
If that helps, mark this as correct. If not, come back and we'll figure out more.
3 people found this helpful
If you have problem with endless "Sign in" loop or "Validating software license" loop or if the message "Please wait for a moment" doesn't disappear after 10 minutes check following steps.
On Windows delete or rename following folders
C:\Users\[your user name]\AppData\Local\Adobe\OOBE
C:\Program Files (x86)\Common Files\Adobe\SLCache
Then right-click the shortcut of CC application (e.g. Photoshop or InDesign), choose "Run as administrator" (or "More" > "Run as administrator"), enter your Adobe ID and password and clicks Sign in.
On Mac delete or rename following folders
~/Library/Application Support/Adobe/OOBE (in user Library folder)
/Library/Application Support/Adobe/SLCache (in main Library folder)
Then launch any CC application and Sign in.
Thanks a lot! It works!