Call of Duty Warzone Error Code Stratus: How to Fix It

Easy 15-45 minutes Medium Severity Verified June 2026
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Error Code
Stratus
Brand
Call of Duty Warzone
Product Type
game
Severity
Medium
DIY Difficulty
Easy
Estimated Fix Time
15-45 minutes
The Stratus error code in Call of Duty Warzone means the game timed out while trying to find or connect you to a match, a problem commonly caused by network instability, server-side issues, or misconfigured connection settings. It typically appears during the matchmaking queue and prevents you from joining a game. In most cases, this is fixable on your end with a few targeted network and game setting adjustments.
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Tools You'll Need

How to Fix Error Code Stratus

  1. Check Activision Server Status

  2. Restart Warzone and Your Platform

  3. Restart Your Router and Modem

  4. Switch to a Wired (Ethernet) Connection

  5. Enable UPnP or Manually Open NAT Ports

  6. Flush DNS and Renew Your IP Address (PC Only)

  7. Change Your DNS Server to a Public DNS

  8. Scan and Repair Game Files (PC Only)

  9. Update Network Adapter Drivers (PC Only)

  10. Disable VPN, Proxy, and Background Bandwidth Apps

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When to Call a Professional

If you have tried every step in this guide and still receive the Stratus error consistently, contact Activision Support directly at support.activision.com and open a support ticket — include your platform, region, and a description of the steps you have already tried. If your internet connection itself appears to be the underlying problem (high packet loss, disconnections across all apps), contact your Internet Service Provider (ISP) for a line diagnostic and possible equipment replacement. A networking professional or your ISP's support team can run deeper diagnostics that go beyond what can be done from the game settings.

Frequently Asked Questions

What does the Warzone Stratus error code mean?
The Stratus error code in Warzone means the game experienced a matchmaking timeout — it tried to connect you to a game server or match but the connection attempt took too long and failed. This is usually caused by network instability, a strict NAT type, Activision server problems, or high internet congestion on your local network.
Is the Warzone Stratus error Activision's fault or mine?
It can be either. If Activision's servers are experiencing an outage or degraded performance, you will see this error even with a perfect connection and there is nothing you can do except wait. If the servers are fine, the issue is almost always on your local network — such as a weak Wi-Fi signal, strict NAT type, ISP routing issues, or background apps consuming bandwidth.
How do I fix the Stratus error on PS5 or PS4?
On PlayStation, start by restarting the game and console. Then go to Settings > Network > Set Up Internet Connection and switch to a wired connection if possible. Change your DNS to 8.8.8.8 and 8.8.4.4. Check your NAT type — it should show as Type 2 (Moderate) or Type 1 (Open). Log into your router and enable UPnP to help achieve an Open NAT. Also verify Activision's servers are not experiencing an outage before spending time on local fixes.
Can a VPN cause the Warzone Stratus error?
Yes, using a VPN is a very common cause of the Stratus error. VPNs add latency by routing your traffic through intermediate servers, which can cause Warzone's matchmaking system to time out before finding a match. Always disable your VPN completely before launching Warzone. If you must use a VPN for other reasons, consider using a split-tunneling feature to exclude Warzone traffic from the VPN tunnel.
Why do I keep getting the Stratus error even after restarting?
If restarting does not fix the Stratus error, the problem is likely a persistent network configuration issue rather than a temporary glitch. The most common persistent causes are a strict NAT type (check and fix via UPnP or port forwarding in your router settings), ISP-level packet loss, or outdated network drivers on PC. Run a network test on your console or use a tool like PingPlotter on PC to check for packet loss between your device and game servers. If packet loss is high, contact your ISP.

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