Strict NAT. Ive tried everything

aP Nally · Jul 19, 2016

ive spent 2 days of research and many different methods from port forwarding, static ip, and even messing with LAN settings. Literally so far everything I have attempted will not open up my NAT. I have a Belkin AC1200 DB Wi-Fi AC+ the model is: F9k1113v4.
My last attempt to solve my strict NAT to open was using portforward.com guide for my specific router and xbox one. This did not work, hence why I am here.

:)

RyanRitterbusch ✔ · Jul 19, 2016

Strict NAT, Tried everything

tried everything, never had a problem with my 360

What Country/State/Province do you live in? USA,California

Modem brand & model number: No personal modem, just the ethernet outlet set up by my apartment complex

Router brand & model number: Cisco Linksys E900

Wired or wireless: wired

Things you have tried: putting xbone in dmz, port fowarding, switched the xbox off mode

Is UPnP Enabled? Yes

Do you have a NAT error? If so, what is your NAT type? Strict, "Your network is behind a port-symmetric NAT"

Any Error Codes you encounter: 0x40000000400000000

Who is your ISP?(Internet Service Provider): Cox Cable

jmcode · Jul 19, 2016

Strict NAT, Tried everything

Yes, if I am correct that you are behind a NAT router and firewall they are managing. If, as I understand, you are getting Internet via CAT5e/6 from the wall and do not have your own modem, then that is almost certain. You can verify by looking at the WAN
IP of your E900, as reported in its web interface. If it is a private class IP (see explanation at
whatismyipaddress.com/private-ip), then your E900 is behind another NAT router--presumably your complex-wide one. It may be very difficult to convince them to open ports for you, and what
if another resident with an Xbox One wants the same? A port can only be forwarded to one host at a time...

Elohmn · Jul 19, 2016

Have you tried Automatic Settings? If you are trying to use multiple solutions (ie Port Forward and UPnP) you will have Strict or Moderate NAT Settings.

The simplest solution to trying to resolve Strict/ Moderate NAT Settings is to directly Connect with your Modem. If the problem persist you would need to contact your ISP as it is not an issue with your Local Network.

Elohmn

Have you tried Automatic Settings? If you are trying to use multiple solutions (ie Port Forward and UPnP) you will have Strict or Moderate NAT Settings.

The simplest solution to trying to resolve Strict/ Moderate NAT Settings is to directly Connect with your Modem. If the problem persist you would need to contact your ISP as it is not an issue with your Local Network.

jmcode

Yes, if I am correct that you are behind a NAT router and firewall they are managing. If, as I understand, you are getting Internet via CAT5e/6 from the wall and do not have your own modem, then that is almost certain. You can verify by looking at the WAN
IP of your E900, as reported in its web interface. If it is a private class IP (see explanation at
whatismyipaddress.com/private-ip), then your E900 is behind another NAT router--presumably your complex-wide one. It may be very difficult to convince them to open ports for you, and what
if another resident with an Xbox One wants the same? A port can only be forwarded to one host at a time...

RyanRitterbusch ✔

@Snakebit333 Tried what you said, but nothing worked :\

@GZA So basically I need to get in contact with my complex's IT and try and get them to open the ports on their end?

jmcode

It is likely because the Xbox 360 uses only IPv4. It does not have IPv6 support and does not use Teredo. The Xbox One fully supports IPv6, which is the future of the Internet (the supply of IPv4 addresses is pretty much exhausted). Because many ISPs and
other parts of the Internet infrastructure (including many or most home users' routers) are not yet IPv6 capable (or have a broken implementation), the Xbox One uses a transition technology called Teredo to tunnel IPv6 over IPv4. Unfortunately, Teredo does
not work in some setups such as symmetric NAT, double NAT, etc. Additionally, you have a problem in that your Xbox One is likely behind a symmetric NAT router over which you have no control--i.e. one run by your apartment complex. This means you cannot effectively
forwards ports, enable UPnP, put the Xbox in DMZ, etc. (doing so on your own router is ineffective assuming I am correct that it is behind your complex's router).

RyanRitterbusch ✔

same thing, strict nat when I plug it in from the wall. Its very frustrating I can chat with my friend in a Ghosts lobby, but when I join the Xbox Live party I can't hear him or it says "You can't join the party right now". 360 never had this problem don't
know why it would start now

Strict NAT. Ive tried everything