Q: Do I need to open or forward a specific port on my router or firewall to log in to World of Warcraft or StarCraft II using my Battle.net account?
A: Yes, you may need to open an additional port (1119) to log in to Blizzard Entertainment games. In order to accommodate certain Battle.net features such as cross-game chat when using Real ID, Battle.net accounts need to use a different port from each of our games, including World of Warcraft. Presently, the Battle.net account system communicates using port 1119, though it uses both the TCP and UDP protocols. For more information on these or other technical questions, visit the tech support forums
We’ve set aside port 1119 with the Internet Assigned Numbers Authority (www.iana.org
) specifically for use with the Battle.net login system. A full listing of ports and who has registered them can be found at http://www.iana.org/assignments/port-numbers
For more information on configuring your router for use with Blizzard games, visit http://us.blizzard.com/support/article.xml?locale=en_US&articleId=21073