What is your OS, (ah looks like Windows 10)? Have you exited (quit) all the way out of Creative Cloud and then signed in again with your UN/PW? Also, some other people have had the same internet connection error and it was fixed by updating their video card drivers. Worth a shot!
No problem, sorry I haven't been able to give you more help! I'm assuming this doesn't have to do your system at all but with the 3D Animation Services Preview since you have an internet connection otherwise. Has that changed in anyway? Maybe it was disabled in some way? Did you check the Preferences > Technology Previews > Enable CC 3D Animations (Preview) setting? I’m out of ideas and clues... fingers crossed you will figure it out soon!