07-26-2010 12:01 AM - edited 07-26-2010 12:09 AM
Before venturing into the thicket of configuring ports, try this solution first:
07-26-2010 08:48 AM
Rather than having to configure your ports manually, setting the Xbox to Full Trust tells Norton to allow whatever ports and protocols are requested by the device. Essentially your Xbox ports will be set automatically whenever you use the Xbox.