How to Fix Call of Duty Server Disconnected Error

The “server disconnected” error in Call of Duty can interrupt your gameplay and kick you back to the main menu without warning. This guide covers all the fixes for resolving this connection error in Modern Warfare, Warzone, and other Call of Duty titles.

Method 1: Check Server Status

Server disconnections are often caused by issues on Activision’s end during outages or maintenance periods.

1. Visit support.activision.com/onlineservices to check the official server status.
2. Check downdetector.com for “Call of Duty” to see real-time user reports.
3. If servers are down, wait for Activision to resolve the issue.

Method 2: Restart Your Game and Platform

A full restart clears the game’s network session and establishes a fresh connection to the servers.

1. Close Call of Duty completely on your platform.
2. Restart your PC or console.
3. Relaunch the game and attempt to connect.

Method 3: Restart Your Router

A stale network connection can cause frequent disconnections from game servers.

1. Unplug your router from power for 30 seconds.
2. Plug it back in and wait for all lights to stabilize.
3. Use a wired Ethernet connection if possible for better stability.
4. Launch Call of Duty and test the connection.

Method 4: Flush DNS Cache

A corrupted DNS cache can cause your system to fail when resolving game server addresses.

1. On PC: Open Command Prompt as administrator and type ipconfig /flushdns and press Enter.
2. On PlayStation: Simply restart your console to clear the DNS cache.
3. On Xbox: Go to Settings, General, Network Settings, Advanced Settings, and select Alternate MAC address, then Clear.
4. Restart your device and launch the game.

Method 5: Change DNS to Google or Cloudflare

Using a faster and more reliable DNS server can improve your connection to game servers.

1. On PC: Go to Network settings and set DNS to 8.8.8.8 and 8.8.4.4 (Google) or 1.1.1.1 and 1.0.0.1 (Cloudflare).
2. On PlayStation: Go to Settings, Network, Set Up Internet Connection, Custom, and enter the DNS manually.
3. On Xbox: Go to Settings, Network, Advanced, DNS Settings, Manual.
4. Restart your device after changing DNS.

Method 6: Disable VPN

VPN connections add latency and can trigger server disconnections in Call of Duty.

1. Disconnect from any active VPN connection on your device.
2. Close the VPN application completely.
3. Launch Call of Duty and check if the disconnection issue is resolved.

Method 7: Scan and Repair Game Files

Corrupted game files can cause connection errors even when your internet is working fine.

1. On Steam: Right-click the game, Properties, Installed Files, Verify integrity of game files.
2. On Battle.net: Click the gear icon next to Play, then select Scan and Repair.
3. Wait for the scan to complete and repair any corrupted files.
4. Restart the game and test the connection.

Method 8: Port Forwarding

Opening the required network ports ensures Call of Duty can communicate freely with its servers.

1. Log in to your router’s admin page (usually 192.168.1.1 or 192.168.0.1).
2. Find the Port Forwarding section.
3. For PC: Forward TCP ports 3074, 27014-27050 and UDP ports 3074, 3478, 4379-4380, 27000-27031.
4. For PlayStation: Forward TCP ports 1935, 3478-3480 and UDP ports 3074, 3478-3479.
5. For Xbox: Forward TCP port 3074 and UDP ports 88, 500, 3074, 3544, 4500.
6. Save your router settings and restart both your router and gaming device.