How can I disable the

This is your router's IP address: http://192.168.2.1
Type that into your address bar. To the left you will see a menu. Select "Firewall". When the log in screen appears, click submit without entering a password.
Click "disable firewall", then "apply changes".

The router does not have a firewall, it is the fire wall. It is called a hardware firewall.When you are behind a router no one from outside your network can see your computers on your network.All they can see is the I.P address of your router and not your computers. If you are having trouble getting something through your router such as a torrent or internet phone etc, you need to port foward the port number of whatever service you want to let through.The easyest way to do this is to go to portfoward.com.Find your router model in their list.tell them what you want to let through and follow their directions.