I'm sorry that you ran into trouble with this! It sounds like something is blocking the font sync on your computer, such as a network proxy or firewall setting.
Please try these troubleshooting steps to start:
If that doesn't solve the problem, send us the Creative Cloud log files from your computer at email@example.com and we will look into it further. There are instructions on where to find the logs on OS X and Windows in that troubleshooting page.