The equipment you use to sign on to AT&T U-verse acts like a modem and router in one: the gateway connects to the DSL service but also broadcasts a wireless network that computers can access. Just like a traditional router, the gateway includes an integrated firewall that manages all of the traffic entering and leaving your network. If you play games online, chat with your friends over Skype or use peer-to-peer software, the firewall could be slowing down your connection. To improve both your download and upload speeds, open the associated ports for any programs you use that connect to the Internet.
Sign on to the computer to which you want to forward the port, and then connect to your wireless network.
Type "http://homeportal/" (without quotation marks) into the address bar of a browser, and then press "Enter" to sign in to your gateway.
Select the "Settings" tab, and then select the "Firewall" subtab. Choose the name of your computer from under "Select a Computer."
Select "Allow Individual Applications" from under "Edit Firewall Settings for This Computer."
Choose an application to unblock from the Application List, and then click "Add," or select "Add a New User-Defined Application" if you don't see the appropriate program.
Enter the name of the program or service into the Application Profile Name field, and then set the protocol to "TCP" or "UDP."
Enter the appropriate port number or port range into the "Port (or Range)" fields. For example, to allow peer-to-peer software, enter "6881" into the first field and "6999" into the second field; to allow Remote Desktop Connection, type "3389" into both fields.
Leave the "Protocol Timeout," "Map to Host Port" and "Application Type" fields blank to use the default values, and then click "Add to List."
Click "Back" to return to the previous page. Choose the program or service from the Application List, and then click "Add."
Repeat Steps 7 through 11 to enable additional programs through the firewall, and then click "Save" to commit your changes.
Check the help documentation included with your program or contact the software vendor to learn which ports you need to open.