Ok I do not use it so guessing.
1. To authorise does the program requre net access ensure it is allowed full access in the Internet connection for programs section of the Firewall settings
2. Check if netguard is blocking the Ip it is connecting to. Netguard is in the firewall settings.
2b Disable firewall and see if it connects.
3. Call tech support and ask them why this happening. Do this after you find out from adobe support what exe is doing the authorisation checking?