Can't activate any CC program
I work with a Windows 10 computer within a network environment.
Although I am already logged in to the Creative Cloud I cannot activate any of the programs.

As soon as I start a program of the Creative Cloud a white box appears which tries to communicate with Adobe but has no success.

We have tested this with and without proxy, but have not had any success until now. Has anyone a suggestion how we can solve this? We have checked the Hosts file, the ability to access https:// websites und have ponged the Adobe webpage. Everything worked fine.
