Below are some of the most commonly used firewalls on the market. It is very important that you add the exe for your game to your firewall so your game can go online to activate. 

 To see how to configure Comodo, please

   To see how to configure AVG, please

   To see how to configure McAfee, please

   To see how to configure Norton, please

   To see our guide for adding an exception to Microsoft Security Essentials, please

   To see how to add a program to the Trusted Zone in Kaspersky, please

   For assistance with configuring scan exclusions, or restoring quarantined files on Malware Bytes, please   

   To see how to exclude an application in BitDefender Total Security, please

  To see how to exclude files and websites in Avast! please