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xbox one still has a strict NAT with DMZ host

I've  put my xbox one ( connected wireless)  in the DMZ host and it still has a strict nat. It was open at first, but when i checked back about a hour later it said strict.So i disabled the dmz, still strict nat. i can't port forward because my second xbox1 (connected hardwired) is already port forwarded. Is there a way to get an open nat?

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I think this has been a issue with quite a few people as far as connecting two X1s in the house under the same ISP...

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Only way is to set  BOTH Xbox ones to "power saving" mode instead of "instant on" in the settings. And delete the port forwarding for the other Xbox one. After a full reboot both will have open NAT. I have two also at home and both are open.  Instant on makes it moderate or strict every time I try.

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ok thanks i'll do that.

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Also if you've got dynamic IP addressing the lease time for that address may have expired and re-issued a new non-DMZ'd IP to the console?

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Turning off instant-on mode worked. I put a static IP to the console with DMZ and it was still strict. Maybe in the next update instant-on won't cause strict nat. I wonder why instant-on causes strict NAT.

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heya OP its only a possible sugesstion , turn off upnp on ya router, its causes the set up you have issues, and set ya ip of ya xbox the last number at the higher end of 100-120 just to cover other devices that soley use the mid range.hope you get a solution. :) I have exactky the same set up on my new home hub 5 and the upnp was still causing problems, but once I turned it off all good and also any smart setup type of thing on the router get that off too.

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Wonder if this would help. Turn off any Firewall the router has. This has helped a lot of people that were always having problems even after I walked them through Forwarding, DMZ, and QOS. Another would be delete the port forwarding and make sure UPNP is on and let it handle it completely.

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I had this issue, I restarted the xbox and got the new update, then went to network setting and forced a change in ip, no it is open and staying open, so hopefully the update has sorted this issue.

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The update had nothing to do with network settings.

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Ok well i did notice that there is now a service status under NAT type after i got the update...it takes a couple of seconds to say all services are available. which is nice to know if something on MS's end is not working.

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Last updated August 31, 2022 Views 4,587 Applies to: