How to Troubleshoot and Fix NAT Type Issues on Xbox Series X and Series S for Multiplayer Gaming

Connecting with friends for online multiplayer gaming, joining party chats, and hosting cooperative lobbies on Xbox Series X and Series S requires smooth peer-to-peer communication. When your router or local network restricts these inbound and outbound data packets, you will encounter connection errors, dropped voice calls, or matchmaking timeouts. The root cause is almost always your NAT (Network Address Translation) Type. Understanding how NAT works on Xbox consoles and applying targeted network adjustments will resolve connectivity bottlenecks and return your console to an Open NAT status.

Understanding Xbox NAT Types

The Xbox network diagnostic tool classifies your console’s connection into three distinct NAT states:

• Open NAT (Optimal): You can host matches, join multiplayer lobbies, and chat with all players regardless of their NAT configuration.
• Moderate NAT (Restricted): You can join lobbies hosted by Open or Moderate players, but cannot connect with users on Strict NAT. You may experience intermittent voice latency and longer matchmaking queues.
• Strict NAT (Blocked): You can only connect to players who possess an Open NAT. You cannot host matches or hear voice communications from most peers.
• Double NAT Detected: Occurs when multiple routing devices (such as a separate modem/router combo and a mesh Wi-Fi system) perform address translation consecutively, causing port collisions.

Step 1: Checking Your Current NAT Type on Xbox

Before applying network changes, verify your console’s exact status:

1. Press the Xbox button on your wireless controller to open the Guide.
2. Navigate to Profile & system > Settings.
3. Select General > Network settings.
4. Inspect the Current Network Status column on the right side of the screen. Review the NAT Type field and check for any secondary error messages (such as “UPnP Not Successful” or “Double NAT detected”).

Step 2: Testing NAT Type and Clearing Console Cache

Often, a temporary handshake desynchronisation between your Xbox and home router causes an erroneous Moderate or Strict reading. Run an active diagnostic refresh:

1. On the Network settings screen, select Test NAT type. Allow the console to complete the multi-second packet test.
2. If the status remains Moderate or Strict, perform a full console power cycle: press and hold the power button on the front of the Xbox for 10 seconds until it powers down completely.
3. Unplug the power cord for 30 seconds, reconnect it, and boot up the console.

Step 3: Enabling UPnP on Your Router

Universal Plug and Play (UPnP) allows Xbox consoles to request and open the necessary network ports automatically whenever online multiplayer sessions begin:

1. Open a web browser on a PC or smartphone connected to your home network.
2. Log into your router’s administrative portal (commonly 192.168.1.1 or 192.168.0.1).
3. Locate the Advanced or NAT / Firewall settings page.
4. Find the UPnP setting and ensure it is toggled to Enabled.
5. If UPnP was already enabled, disable it, save settings, restart your router, re-enable UPnP, and reboot the router once more to flush stale translation tables.

Step 4: Assigning a Static IP and Configuring Port Forwarding

If your router does not support reliable UPnP or strict firewall rules block automatic negotiation, manual port forwarding guarantees an Open NAT status.

1. Set a Manual IP on Xbox

1. Go to Settings > General > Network settings > Advanced settings.
2. Select IP settings > Manual.
3. Enter an available static IP address outside your router’s DHCP auto-assignment pool (e.g., 192.168.1.150).
4. Enter your subnet mask (typically 255.255.255.0) and gateway address (your router’s IP).

2. Forward Required Xbox Network Ports in Router

Access your router’s Port Forwarding menu and create forwarding rules directing traffic across these official Xbox network ports to your console’s static IP:

• Port 88 (UDP): Xbox network kerberos authentication.
• Port 3074 (UDP and TCP): Core Xbox matchmaking and multiplayer traffic.
• Port 53 (UDP and TCP): Domain name system (DNS) queries.
• Port 80 (TCP): HTTP protocol web connectivity.
• Port 500 (UDP): Internet Key Exchange (IKE) authentication.
• Port 3544 (UDP): Teredo tunnelling protocol.
• Port 4500 (UDP): IPsec NAT traversal.

Step 5: Resolving Double NAT Conflicts

If your console reports “Double NAT detected”, your ISP-supplied modem is likely acting as a router while your third-party Wi-Fi router also operates in routing mode. To resolve this conflict:

• Option A: Enable Bridge Mode on the ISP Modem: Access the ISP modem’s administrative console and switch its operating mode to Bridge Mode (or IP Passthrough), delegating all routing to your personal router.
• Option B: Set Your Personal Router to Access Point (AP) Mode: In your secondary router settings, switch its operation mode from Router to Access Point, allowing the primary modem to manage NAT assignments exclusively.

Testing Multiplayer Connectivity and Party Chat

Once you have configured UPnP or manual port forwarding, return to your Xbox console. Navigate to Settings > General > Network settings and select Test multiplayer connection followed by Test NAT type. Once verified, the dashboard will display “Your network is good” alongside an Open NAT status, ensuring instant lobby connections and crystal-clear party chat audio.