A Firewall helps you protect your computer and your network against other users that try to access your computer through the internet.
Most of the operating systems (Windows XP and above, for example) already have built-in Firewalls. To see if this is your case, please search your computer for the keyword “Firewall”.
While Firewalls help you being more protected, they can also, in very rare cases, limit your access to our game servers. If you have any problems with connection, please try our Connection Troubleshooting (insert link here).