If there is a firewall or a router between the Xbox console and the
networking hardware, and the Xbox LIVE test reports a NAT problem, you
may have to make configuration changes to enable communication on the
specific network ports that are required by Xbox LIVE. This will not
guarantee that this will give you an "open" NAT status, but it may help.
If
you are using an Xbox LIVE-compatible or Windows Vista-compatible
device with the correct firmware installed, you do not have to manually
open any ports. For a device to gain "compatible" status, the device
and the firmware must perform specific functions with Xbox LIVE. These
functions include (but are not limited to) setting NAT to "Open" and
having the ability to connect multiple consoles to a single router.
For more information about how to find out if your networking hardware
is compatible with Xbox LIVE, click the following article number to
view the article in the Microsoft Knowledge Base:
944293
(http://support.microsoft.com/kb/944293/
)
How to find out if your networking hardware is compatible with the Xbox LIVE Service
If your device is not on the compatible list, you can try opening the following ports:
- TCP 80
- UDP 88
- UDP 3074
- TCP 3074
- UDP 53
- TCP 53
For
information about how to configure port settings on a firewall, a
router, or a gateway, please see the documentation that was included
with that device or contact your network administrator or local
technical support for help. You can also check the xbox.com official
forums to see if other users have the same problem.
If you use a
Windows Vista-certified or Xbox LIVE-certified device and the NAT
status in the Network Status area of the Dashboard is "moderate" or
"strict," verify that the device has the current firmware. For
information about Xbox LIVE-certified devices, such as the correct
firmware version for the device, please visit the following Xbox Web
site:
http://winqual.microsoft.com/HCL/ProductList.aspx?m=v&cid=712&g=d
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