Yes. That sounds exactly the same as the firewall issue I had on Saturday. My Windows Firewall was switched on for certain networks... wehn I disabled it, the app started working. (This was not an issue with Construct, but it seems like Unity requires a bit more freedom)
GOT IT YASS - my right thumb is dead! This game reminds me of Warcraft 3 mini games - improvements can be different modes and being able to upgrade your knight and wagon! I loved the Afrikaans lol!