i havnt used it in a while but when you go to settings you need to enter your IP in some port and configure it. then when you join a party you click sniffer but sniffer will not work. If you do not have your IP there and configure you will have to find it just got to myipaddress.com you will find it there enter it in the configure IP. A more advanced way is set your Out Ports to 3074 which will only get you Xbox Live IPs. be aware that Ips starting with 65 are microsoft Ips meaning Dont even try and fuck with them. Hope i Helped.