Steam Community :: Guide :: How to change NAT Type to OPEN (Port Forwarding) [Updated 2021]

Store Page

Call of Duty: World at War

All Discussions Screenshots Broadcasts Videos News Guides Reviews

Call of Duty: World at War > Guides > Pelinkovac's Guides

Not enough ratings

How to change NAT Type to OPEN (Port Forwarding) [Updated 2021]

By Pelinkovac

Methods for obtaining an OPEN NAT Type (successful lobby hosting)

Award

Created by

Pelinkovac
Offline

Category: Co-op, Modding or Configuration, Multiplayer

Languages: English

Posted

Updated

23 Oct, 2020 @ 10:14am

3 Apr, 2021 @ 8:07am

2,129	Unique Visitors
36	Current Favorites

Guide Index

Overview

Helped?

Why Can't others join my lobby?

Explanation

Changing NAT Type

Checking results

Thanks for reading!

Comments

Helped?

Why Can't others join my lobby?

Can't connect to your session? Can't join others? Can't see any online Zombies sessions/lobbies?
By the end of this guide you will be hosting and joining lobbies without any issues.

Explanation

Basics

NAT Type

Obtained by

Description

Open

UPnP , Port Forward or DMZ , Direct connection

Can establish connection with any NAT type (100% of NAT types) (Best for P2P games such as CoD:WaW)

Moderate

Port Mapping, standard networking method. Proper networking (Most common)

Can establish connection with Open and Moderate NAT Types (66% of NAT types). Most common NAT Type. Achieved by being behind one or more routers. Does not mean networking is broken in any way

Strict

Firewall blocking port connections. , Double NAT or CG-NAT (Carrier Grade)

Can establish connection with Open only (33% of NAT types). Achieved by firewall blocking ports needed to establish game networking connection. Undesirable for P2P Games

Changing NAT Type

My Guide

You can follow all my instructions in my guide For CoD: Black Ops III starting from "Forwarding Methods" guide index except for CoD:WaW you ONLY need to port forward port:

For Co-Op (Zombies) (most likely only this one will be enough):
UDP 28960
and/or
For Multiplayer:
UDP 3074
https://gtm.steamproxy.vip/sharedfiles/filedetails/?id=561836866
Important Note:
CoD:WaW does NOT automatically use UPnP therefor you need to either Port Forward using my UPnP method to basically manually add the port to UPnP through your PC or Port Forward using the 2nd method I stated (default gateway router settings panel)

Checking results

How to see if it worked?

You were successful if:

1. You can see other Co-Op sessions in the session browser (don't panic if you don't see any , there may be no-one playing)

or

2. Host a Co-Op Zombies lobby and invite your friends through the in game system and see if they (or any random players) can join without any issues. Start the game and enjoy

Thanks for reading!

Please rate my guide if it helped you :)
Leave a comment if you have any questions