Here's the problem, lately my XBOX 360 has not been working properly online, it can hook up to the internet and all but I can't play many online games, I understand that I need to change the NAT settings. So I found this guide on how to change your NAT settings. I am using the Thomson SpeedTouch ST585v6sl wireless router however my connection is wired to router. These are the only set of instructions I can find on the matter (using the guide above):

Thompson Speedtouch 576 (and other models)

* Click on http://speedtouch.lan/ or http://192.168.1.254/ to open up the router config page in your browser
* The default username=Administrator
* The default password is blank so just press enter (unless of course you've changed these settings from the defaults)
* Click on the "Game and Application Sharing" menu
* Untick the UPnP option
* Click Apply
* Create a static ip address on your Xbox by following the instructions here
* In the Home Network menu, click Devices.
* In the Pick a task list, click Assign the public IP address of a connection to a device.
* Click the Edit link of your Internet connection.
In the Device list, select the device you want to assign the public address to. The Xbox may not appear in the list, if it doesn't you should be able to manually enter the ip address of the Xbox in that field.
* Click Apply.
* The SpeedTouch™ prompts you to make some adjustments as a result of the new configuration.
* Click OK.
* After that, restart the Xbox and the router and try again
* After saving Applying/Saving all settings you have changed, power off the router and xbox. Wait 20 seconds and power up the router then then Xbox and your NAT should be Open and able to host/join games


I have successfully created a static IP address on my XBOX. However, on the ninth instruction "In the Pick a task list, click Assign the public IP address of a connection to a device", I do not seem to have that instruction, all I have is "Assign a game or application to a local network device", therefore I cannot continue the rest of the instructions, can anyone help please?