Not being able to play with other people with nat open

Sounds like it might be a NAT issue

OPEN NAT MODERATE NAT STRICT NAT

With an OPEN NAT type, you’re able to chat with other people, as well as join and host multiplayer games with people who have any NAT type on their network.

With a MODERATE NAT type, you’re able to chat and play multiplayer games with some people; however, you might not be able to hear or play with others, and normally you won’t be chosen as the host of a match.

With a STRICT NAT type, you’re only able to chat and play multiplayer games with people who have an OPEN NAT type. You can’t be chosen as the host of a match.

Did you try changing your NAT type? The helpdoc says:

Open:

With an OPEN NAT type, you’re able to chat with other people, as well as

join and host multiplayer games with people who have any NAT type on

their network

Moderate:
With a MODERATE NAT type, you’re able to chat and play multiplayer games

with some people; however, you might not be able to hear or play with

others, and normally you won’t be chosen as the host of a match.

Strict:

With a STRICT NAT type, you’re only able to chat and play multiplayer

games with people who have an OPEN NAT type. You can’t be chosen as the

host of a match.

-- So I take that to mean if you have STRICT NAT, and if anyone in the group DOES NOT have an OPEN NAT type you are going to have problems.

Are you both running STRICT NAT type?

Usually not being able to play with certain people is a NAT type error. I have had issues with the xbox one staying on and open NAT. It goes back and forth from open to moderate. Have no idea why. My 360 always stayed on open.

Hey dude,

Just because you both have the same NAT's, doesn't mean you'll be able to play together. What type of NAT do you both have?

Here is a description of each of the NAT types:

Open NAT: With an OPEN NAT type, you’re able to chat with other people, as well as join and host multiplayer games with people who have any NAT type on their network.

Moderate NAT: With a MODERATE NAT type, you’re able to chat and play multiplayer games with some people; however, you might not be able to hear or play with others, and normally you won’t be chosen as the host of a match.

Strict NAT: With a STRICT NAT type, you’re only able to chat and play multiplayer games with people who have an OPEN NAT type. You can’t be chosen as the host of a match.

So if you are either moderate or strict, that could be the reason. Some further tips on how you can solve the problem can be found here:

support.xbox.com/.../nat-error-solution

Hope this helps

Cheers

Denaz

Hello, first it's a pleasure to be able to help you today.

My name is welcome to the community.

Hello Kai, you checked your nat type, it is responsible for group gameplay and also for creating them.

I don't know if you're playing on your PC or console, ideally your NAT is open.

https://support.xbox.com/en-IE/help/hardware-ne...

Why NAT is important

Open NAT: With an OPEN NAT type, you're able to play and host multiplayer games with people who have any NAT type on their network.

Moderate NAT: With a MODERATE NAT type, you're able to play multiplayer games with some people; however, you might not be able to play with others, and normally you won't be chosen as the host of a match.

Strict NAT: With a STRICT NAT type, you're only able to play multiplayer games with people who have an OPEN NAT type. You can't be chosen as the host of a match.

Unavailable NAT: If NAT is unavailable, you'll be unable to use party chat or connect to multiplayer games for some titles on the Xbox network.