confirm that you can connect to the secure adobe servers by reading, http://helpx.adobe.com/x-productkb/policy-pricing/activation-network-issues.html do you see both logos?
if you can and still see a connection error, white list the adobe network endpoints, https://helpx.adobe.com/enterprise/kb/network-endpoints.html
could you fix your problem? I have the same problem and I already tried everything and I can not solve it
there's win 10 bug. see if applies to you:
do you see a yellow “No Internet Access” error triangle in the Windows 10 system tray and can’t connect to the internet in apps , but can browse the web as you normally would, you’ve got the bug.
using a browser that allows popups and cookies, contact adobe support during pst business hours by clicking here, https://helpx.adobe.com/contact.html
click contact us (in the lower right)
in the chat field, type AGENT
be patient, it can take quite a while to reach a human