Xbone NAT strict, tried everything.

Yes my modem is a sb5101. The dgl 5500 does have UPnP.

So I turn UPnP on then I get rid of all the port forwarding setting I put in? And then do what with the dmz? The dgl has an area where u put the ip of the device for the dmz.

i can't take the firewall completely down becaus Their r laptops and other pc's on it.

[quote user="Full BASS Drop"]

It's a Motorola surfboard, idk the numbers on it, I think it's something like 5101.[/quote]"Think", as in, the actually model number of your Motorola Surfboard is 5101?

[quote user="Full BASS Drop"]Yes I have two 360 an Xbox one... two xbox's sometimes *snip* all at once sometimes.[/quote]This set up will cause a port competition, regarding Xbox traffic and that is why you see a change in the nature of your NAT's behavior,
drifting from Open to a restricted model of operation.

This is where UPnP (Universal Plug and Play) enters the stage. UPnP have the knowledge to implement an open window, visible to any host on the Internet to see and pass traffic through to your console and not only visible to the destination host, which
is represented in a strict model. More important, UPnP is capable of handle multiple xboxes with this open window, or an open NAT/full-coneNAT/Endpoint Independent Mapping.

Not many make and models of router's that you see on the market today implement the UPnP stack in a well-behaved way. You can try and see if your router is capable of implementing UPnP, to have a more tolerant mode of operation for all three xboxes, at
the same time.

Make sure each and every one of your xboxes network settings are set to obtain IP address and DNS automatic.

Visit the manufactures website of your router, to make sure your router is up-to-date with the latest version of firmware.

Access your routers web-utility interface and make sure UPnP is ticked enable. With UPnP operating, make sure you've disabled Port Forwarding/Virtual Server and DMZ.

Keep us posted!

You could try to reset EVERYTHING (modem , router and xbox) to factory defaults and start over.....as I said , I didn't need any static ip's or any port forwarding......any good router with UPNP should work

Please I'm begging if anyone could give even an opinion.

This is frustrating me so much I broke an xbone controller and my 1200$ laptop over the situation. I work all day 10am to 10pm 6 days a week and the only thing I ask is I can come home and enjoy some XBL, but I can't even do that. I really would appreciate
some advice, or help, just an opinion.

I had the same problem. Tried everything.

I tested my 360 on the modem and the network was open.

Then I tried a friends One on my network and it was open. From that I guess its a faulty console.