How can I find out the port numbers I need to give to my isp to set my NAT Type to OPEN?

Hello!

My name is Dérek, I'm an independent platform consultant and I'm grateful for the opportunity to help you.

Long, the correct configuration for a clean connection to the Live servers would be this

set a fixed ip for the console/PC, open the ports described below, disable and enable the UPnP function and disable the modem firewall, if you have a modem and a router the process has to be done on both devices.

Put console/PC IP in DMZ zone.

Port 88 (UDP)

Port 3074 (UDP and TCP)

Port 53 (UDP and TCP)

Port 80 (TCP)

Port 500 (UDP)

Port 3544 (UDP)

Port 4500 (UDP)

You can ask ISP(Internet Service Provider) for help

I remain at your disposal if you have any further questions.

Here you go:

https://support.xbox.com/en-US/help/hardware-network/connect-network/network-ports-used-xbox-live

You can set up port forwarding through your router settings yourself if needed

I know you said your nat type is open, but if you have Comcast/Xfinity, they give false open nat types very often. Depending on who your ISP is, you may need to try a dmz or port forwarding.

I live in the U.S

Modem brand & model number: BEC 8800N

Router brand & model number: Netgear Nighthawk R7000

How many Xbox 360 and Xbox One consoles are connected to this router?: One console, as indicated.

Wired or Wireless (for each console): Wired

I have tried resetting the appropriate components: Modem, Router, Console to no avail. Using a port checker to see the ports I've tried to forwarded are opened (they don't seem to be open). Opening the ports have been a bit of a struggle. At the moment of
this post, I switched a NAT setting in the WAN setup from Secured to Open. This has changed my Xbox's detailed NAT information to "Your network is behind a port-restricted NAT".

Is UPnP Enabled? Yes/No/Unknown: Of course, it's enabled.

Do you have a NAT error? If so, what is your NAT type?: As I stated, Moderate.

Any Error Codes you encounter: No

Who is your ISP? (Internet Service Provider): Local ISP (My city has it's own ISP)

Hopefully this helps. Thanks for the reply!

From my Black Ops 3 Game Menu, it says that my NAT Type is moderate. To the right of it, they explain that the game tried to use UDP port 3075 to open the required port fo OPEN NAT in-game. I'm not too internet savvy. Can anyone do something with this to
find out if 3075 is the port neccessary for us all to gain the open NAT Type?