AcrobatFill&Sign and firewall

Good morning,

i've problem with my firewall and the application.

Actually i can login to adobe but when i try to use Fill&Sign the app can't load my signature because firewall blocks necessary links. 
If i turn off firewall all works means when there's an issue with my firewall policies (cloud.adobe.com is already opened but gives problem about fetch the API )
so i'd like to know if there're other links to load the signature (it's already registered).

I wait for a reply
Daniele