Call of Duty NAT Type Guide

Fix NAT type issues in Warzone, Modern Warfare, Black Ops, and all COD games

How NAT Type Affects Call of Duty

Understanding the impact on your gameplay experience

Open NAT

  • Fastest matchmaking
  • Connect to all lobbies
  • Host games without issues
  • Clear voice chat
  • No connection interruptions

Moderate NAT

  • Slower matchmaking
  • Cannot join some lobbies
  • Occasional host migration
  • Voice chat may cut out
  • Some party issues

Strict NAT

  • Very slow matchmaking
  • Limited lobby options
  • Cannot host games
  • Frequent disconnections
  • Voice chat problems

Platform-Specific Port Settings

PC (Battle.net/Steam)

TCP Ports:

3074, 27014-27050

UDP Ports:

3074, 3478, 4379-4380, 27000-27031, 27036

PlayStation (PS4/PS5)

TCP Ports:

80, 443, 3074, 3478, 3479

UDP Ports:

3074, 3478, 3479

Xbox (One/Series X/S)

TCP Ports:

3074

UDP Ports:

88, 500, 3074, 3544, 4500

Quick NAT Fixes for COD

Check NAT Type in COD

All Platforms
  1. 1.Launch Call of Duty
  2. 2.Go to Settings → Account & Network
  3. 3.Look for NAT Type indicator
  4. 4.Should show Open, Moderate, or Strict

Router Restart Method

Quick Fix
  1. 1.Close Call of Duty completely
  2. 2.Unplug router for 30 seconds
  3. 3.Plug back in and wait for connection
  4. 4.Launch COD and check NAT type

Advanced Fix: Port Forwarding

  1. 1. Find your gaming device's IP address
  2. 2. Access router admin panel (192.168.1.1)
  3. 3. Navigate to Port Forwarding section
  4. 4. Add rules for your platform's ports
  5. 5. Save and restart router

Game-Specific Issues & Solutions

Warzone 2.0 / DMZ

Issue: High ping, lobby disconnects

Fix: Prioritize UDP 3074, enable QoS

Modern Warfare III

Issue: Party chat issues, cannot join friends

Fix: Forward all platform-specific ports

Black Ops Cold War

Issue: Zombies host migration

Fix: Open NAT required for hosting

Vanguard

Issue: Packet burst, latency variation

Fix: Check for double NAT, use wired connection

Pro Settings for Competitive COD

Router QoS Settings

  • • Set gaming device as highest priority
  • • Limit bandwidth for other devices during gaming
  • • Enable WMM (WiFi Multimedia) if using wireless

DNS Recommendations

Cloudflare DNS

1.1.1.1 / 1.0.0.1

Google DNS

8.8.8.8 / 8.8.4.4

Connection Best Practices

  • Always use wired connection for competitive play
  • Close background apps and downloads
  • Test connection before ranked matches

Common COD Connection Errors

BLZBNTBGS000003F8

Connection timeout - Check NAT type and firewall

VIGOROUS

Server queue - NAT type affecting matchmaking

DEV ERROR 6068

DirectX issue - Update drivers, verify game files

Connection Failed

Unable to access online services - Port forwarding needed

Still Having Issues?