Nat suddenly strict

hi guys,

i was playing some battlefield with my x1 and suddenly i had an connection error and my nat was strict, before it was opene. I already restarted my router and the xbox. I changed the port coward in and everything but nothing seems to work. I don't know what
to do because I can't open a party or even start a game. I am in the preview program.

I woul appreciate help or suggestions

kind regards

:)

 

STRICT NAT suddenly- What gives??

I'm on same boat... I dmzed my box long ago never had any problems till halo 4 came out now I can't join live parties or friend games. No problem with random games though

 

STRICT NAT suddenly- What gives??

Same for me now. As I type this I'm texting friend back and forth. We can play any XBL game fine including AC3 but Microsoft won't allow us to play Halo together.

 

Have you changed any hardware and/or configuration recently? Provide the below information so you configuration is clear.

What Country/State/Province do you live in?

Modem brand & model number:

Router brand & model number:

How many Xbox 360 and Xbox One consoles are connected to this router?:

Wired or Wireless (for each console):

Things you have tried:

Is UPnP Enabled? Yes/No/Unknown:

Do you have a NAT error? If so, what is your NAT type?:

Any Error Codes you encounter:

Who is your ISP? (Internet Service Provider):

 

Germany

Router brand: Telekom model number: Speedport Entry 2

1 xbox one connected

wired

Is UPnP Enabled? I don't know about that

Nat error suddenly strict

Error code: 0x8000FFFF

ISP: Deutsche Telekom

 

And I thank you for your help

 

You indicate you have the ports forwarded. Was that done prior to or after the NAT went to strict? If you are able to get into the configuration of the Speedport you could try resetting it to default and enabling UPnP and see if that helps the condition.