Valid serial number, when I try to finalize installation, screen says my laptop time is wrong or that I'm not connected to the internet.. time/date/and internet connextion are fine..
See if the following help:
I finally got an Adobe tech to work it out remotely.
It was a used Mac Probook bought through EBAY.. firewall was already down thoug some inner settings had to be adjusted.
Europe, Middle East and Africa