iOS and OS X: Using Game Center behind a firewall
With most Wi-Fi networks, Game Center will work. If you are on a Wi-Fi network that is behind a firewall, see below.
Frequently used by corporations and educational institutions for increased security, firewalls block certain Internet traffic from entering or leaving a network.
Internet traffic moves through a firewall based on service-identification numbers called ports. Certain ports must be open for Game Center to work. Network administrators typically open a minimal set of network ports, allowing the traffic for approved applications to enter and leave the network while blocking other network traffic.
Ports to open
If the Wi-Fi network router you are connected to uses a firewall or security software to restrict Internet access, contact the network administrator and refer to this article. To use Game Center on a restricted Wi-Fi network, port forwarding must be enabled for these ports:
- 443 (TCP)
- 3478-3497 (UDP)
- 4398 (UDP)
- 5223 (TCP)
- 16384-16387 (UDP)
- 16393-16472 (UDP)
The Wi-Fi network administrator can refer to their router, firewall, or security software documentation for information about configuring port forwarding.
If you encounter other issues when using a Wi-Fi network, use Wi-Fi network troubleshooting.