- Jay120171
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- Exalted Mythic Member
All routers use NAT, otherwise you would need an IP address from your ISP for each xbox/computer/device on your home network. The "Open NAT" refers to the routers ability to properly translate ports/protocols from your private IP to your ISP's public IP assigned to you. Some routers implementation of NAT was buggy/flawed so this is why it is tested by your xbox. Also, the "private" IP assigned to your xbox by your router cannot be seen by another xbox. Only the IP address assigned by your ISP to the router/modem is seen by the other persons router.
Posted by: Xaej
Ok, I'll start off by saying in my situation, the boxes were not NAT.
However, I used to have this problem as well, the first 360 would work just fine, but the second one couldn't always connect or some users would appear muted to the second 360. What the problem is, the why I see it, is when you go into some games, the second 360 is getting assigned an IP address by the DHCP on your modem that is the same as the IP address of another box in game. If this happens with the first 360, it usually isn't affected because Port Forwarding/DMZ/UPnP allow reworking around the IP conflict to occur. The solution, for us, as to go into the DHCP settings on the router, and change the "Lease Allow Range." It will probably be something like "192.168.1.100 - 192.168.1.255" or something similar. Most routers will automatically assign the first connection to the router "192.168.1.100" and the second connection "192.168.1.101" and so on and so forth. So I changed the range that it is allowed to assign to some obscure numbers like "192.168.1.237 - 192.168.1.240" and I did not seem to have this problem anymore. Not sure if it will work for you or not, but it did for me anyway.
Good luck, hope this helps.
- Xaej