It appears you are rtrying to activate from within a domain. . . and the domain you are in is VERY restrictive.
If your your network admin can open up traffic to the following locations the issue will be resolved:
http://locale.api.stardock.net port 80
https://account.api.stardock.net port 443
https://install.api.stardock.net port 443
http://activate1.stardock.com port 80
Otherwise, because of the network restrictions, you can send the text file that was generated to firstname.lastname@example.org and we can send you back a license file.