The network test that is performed on the Network status screen for the Network Address Translation (NAT) address shows a status of OPEN, MODERATE, or STRICT. If the status is OPEN, you have optimal settings for Xbox Live connectivity.
If you receive a MODERATE or a STRICT message, you may experience the following issues: •You cannot join certain game sessions.•When you are playing a game with other people on Xbox Live, you may not be able to hear what they are saying.
These issues may occur for several reasons including but not limited to the following: •Main Cause : Your Ports arent Open or are not forwarded Correctly.•Note You may experience the symptoms with the Network Status set to OPEN when you play against another user who has their Network Status set to MODERTE or to STRICT NAT. The host of the game will have to resolve the NAT issues accordingly.
Xbox 360: Port settings for Xbox Live
This article describes situations where you may have to configure port settings on your networking hardware to connect to Xbox Live.
Most broadband routers use Network Address Translation (NAT). Windows Internet Connection Sharing also uses NAT.
For most devices that use NAT, port forwarding is not required to connect to Xbox Live. This is especially true if you use an Xbox Live certified device. Port forwarding should only be needed if you use a proxy server or a true firewall device instead of, or in addition to a NAT. Sometimes, you may have to configure port settings on a non Xbox Live certified router or gateway.
If there is a firewall device between the Xbox console and the network device, you may have to configure the firewall to enable communication on specific network ports. If the NAT status in the Network Status area of the Dashboard is "moderate" or "strict," you may have to configure port settings.
The following ports must be available for Xbox Live to operate correctly: •UDP 88•UDP 3074•TCP 3074
Forward these Ports and You will be set to go !!!
Seeya On Live !