Please note that Blizzard does not offer direct support for proxies (Internet connection sharing), firewalls, or routers.
Configuring security software is preferred, however removing it completely can be used as a test to see if it was blocking the game. Please note that simply disabling security software will not always allow the game to connect correctly, this is due to a feature with most security software in case a virus disables the security software without you realizing it. You can also check if some of the ports associated with Warcraft/Burning Crusade are being blocked by running the online test found at. If these are not set up correctly, the firewall or router may prevent you from connecting to the World of Warcraft/Burning Crusade game servers. You may need to set up these security features to allow access to the game servers. Security software such as firewalls and security hardware such as routers are designed specifically to control your computer's incoming and outgoing connections.
Enter your username and password to log in to the router’s control panel. Open your web browser and enter your default gateway on the address bar and hit Enter. Now, to forward ports, log in to your router. When you are finished, click “OK” all throughout. Next, select “Use the following DNS server addresses” then enter the DNS servers from the DNS servers listed in the command prompt window. In “Subnet mask,” get the number from the result in the command prompt window then enter your default gateway in the “Default gateway” field. Add 10 to the last digit of your default gateway and enter it in the “IP address” field. On the result, look for the “Default Gateway” and take note of the number or IP address. Click “Start,” “All Programs,” “Accessories,” and then “Command Prompt.” In the command prompt window, type without quotes “ipconfig /all” then hit Enter. On the next screen, select “Use the following IP address.” In “IP address” field, enter a new IP address for your computer like without quotes “192.168.22.11” or create an IP address from your router’s default gateway. In the “Local Area Connection Properties” window, in “General” tab, scroll down and select “Internet Protocol (TCP/IP)” and click “Properties.” Internet protocol To set your computer to use a static IP address, right-click your network icon on the system tray then select “Status” and then “Properties.” This is the icon that shows two monitors. If you didn’t do any configuring on your connection and you just connected your computer to your router, most probably you are using a DHCP connection since most ISPs set DHCP connections to their subscribers. If you want to forward ports to your router, first, your computer should be on a static IP address. How can I forward port for 3com Warcraft 3?