Yes it is connected to the Internet. Is it allowed to use the Internet? I believe that it is. That is, I installed it the same as any other Windows app. I turned off Windows Defender. In Defender with Advanced security created Inbound and Outbound rules to allow Lightburn.exe send and receive and did the same for SendUDP.exe. In the router, I turned off security and I tried to set up port forwarding. Not sure if I did it right. This is for Home use and is not connected to any school or corporate network. Hope that helps.