It is necessary to enable traffic toward and from the Cloud4Wi server. In particular, the traffic must be allowed for the following IP addresses and ports:
| IP address | Ports |
| 54.247.117.188 | TCP: 80, 443 UDP: 1812, 1813, 1814 |
| 79.125.111.180 | TCP: 80, 443 UDP: 1812, 1813, 1814 |
| 52.48.102.108 | UDP: 1812, 1813, 1814 |
| 34.252.97.217 | UDP: 1812, 1813, 1814 |
In order to let the client reach web content on the internet, including the Splash Page and other Cloud4Wi application services, HTTP/HTTPS ports (80, 443) should be open toward all destinations.