Windrose uses peer-to-peer (P2P) networking for its co-op multiplayer, which means one player acts as the host and all other players connect directly to that host rather than through a dedicated server. This architecture is cost-effective for the developers but introduces networking challenges for players, particularly around NAT types and port forwarding.
The host's network configuration is the single most important factor in connection stability. If the host has a strict NAT type, other players will struggle to connect or experience frequent disconnects. If the host has a moderate NAT type, connections work but may be unstable. Only an open NAT type provides reliable multiplayer for all participants.
Windrose uses UDP ports 7777 through 7780 for game traffic and UDP port 4380 for Steam networking. If these ports are blocked by a firewall or router, connection attempts will fail silently. The game does not always report port issues clearly, which is why many players spend hours troubleshooting before discovering a simple port problem.
Before diving into fixes, determine your NAT type. On Windows, open Settings, go to Network and Internet, click Properties, and look for NAT type under your connection. Alternatively, use the Xbox Console Companion app's network settings, which provides a detailed NAT report. If your NAT type is strict or moderate, proceed to the port forwarding section below.
| NAT Type | Connection Quality | Action Needed |
|---|---|---|
| Open | Excellent | None |
| Moderate | Good but unstable | Port forwarding recommended |
| Strict | Poor or unable to connect | Port forwarding required |
Understanding Windrose's P2P Networking
Windrose uses peer-to-peer (P2P) networking for its co-op multiplayer, which means one player acts as the host and all other players connect directly to that host rather than through a dedicated server. This architecture is cost-effective for the developers but introduces networking challenges for players, particularly around NAT types and port forwarding.
The host's network configuration is the single most important factor in connection stability. If the host has a strict NAT type, other players will struggle to connect or experience frequent disconnects. If the host has a moderate NAT type, connections work but may be unstable. Only an open NAT type provides reliable multiplayer for all participants.
Windrose uses UDP ports 7777 through 7780 for game traffic and UDP port 4380 for Steam networking. If these ports are blocked by a firewall or router, connection attempts will fail silently. The game does not always report port issues clearly, which is why many players spend hours troubleshooting before discovering a simple port problem.
Before diving into fixes, determine your NAT type. On Windows, open Settings, go to Network and Internet, click Properties, and look for NAT type under your connection. Alternatively, use the Xbox Console Companion app's network settings, which provides a detailed NAT report. If your NAT type is strict or moderate, proceed to the port forwarding section below.
| NAT Type | Connection Quality | Action Needed |
|---|---|---|
| Open | Excellent | None |
| Moderate | Good but unstable | Port forwarding recommended |
| Strict | Poor or unable to connect | Port forwarding required |
Port Forwarding and Firewall Configuration
Port forwarding is the most effective fix for Windrose multiplayer connection issues, and it is easier than most people think. Log into your router's admin panel, usually by typing 192.168.1.1 or 192.168.0.1 into your browser. Navigate to the Port Forwarding section, which may be under Advanced Settings or Gaming, depending on your router brand.
Create a new port forwarding rule for UDP port 7777 and point it to your computer's local IP address. To find your local IP, open Command Prompt and type ipconfig. Look for the IPv4 Address line under your active adapter, which will look something like 192.168.1.104. Enter this address as the destination in your port forwarding rule.
Repeat this process for UDP ports 7778, 7779, 7780, and 4380. Some routers allow you to enter a port range, so you can forward 7777-7780 in a single rule. Save your settings and restart your router to ensure the new rules take effect.
Next, configure your Windows Firewall to allow Windrose through. Open Windows Security, go to Firewall and Network Protection, click Allow an App Through Firewall, and find Windrose in the list. If it is not there, click Allow Another App and browse to the Windrose executable. Check both Private and Public network boxes, then click OK.
If you use third-party antivirus software with a built-in firewall, such as Norton or McAfee, you will need to add an exception in that software as well. The Windows Firewall exception alone is not sufficient if a third-party firewall is active. Temporarily disabling the third-party firewall is a good way to test whether it is the cause of your connection issues.
- Forward UDP ports 7777-7780 and 4380
- Point rules to your computer's local IP
- Allow Windrose through Windows Firewall
- Add exceptions in third-party firewalls
- Restart your router after making changes
Common Connection Errors and Solutions
Even with proper port forwarding, you may encounter specific error messages. The most common is Connection Timeout, which means the game tried to reach the host but got no response within 15 seconds. This usually indicates a firewall on the host's side blocking incoming traffic. Have the host verify their firewall settings and confirm their port forwarding rules point to the correct local IP.
Another frequent error is Session Not Found, which occurs when the Steam lobby does not match the game session. Both players should restart Steam completely, not just the game. If the problem persists, have the host create a new lobby and send a fresh invite, as stale lobby data can persist in Steam's cache.
The Version Mismatch error is straightforward: one player has a different game version than the host. Both players must verify their game files and install any pending updates. If you use mods, ensure all players have the exact same mod versions installed, as even minor version differences trigger this error.
If you experience frequent mid-session disconnects, the host's internet connection stability is likely the culprit. Run a ping test to check for packet loss, and if loss exceeds 1 percent, the host should contact their ISP or switch to a wired Ethernet connection instead of Wi-Fi. Wireless connections are the leading cause of multiplayer instability in Windrose.
For players behind a campus or corporate network where port forwarding is impossible, use a virtual LAN service like ZeroTier or Radmin VPN. These tools create a private network that bypasses NAT restrictions and simulate a local connection. Set up is quick and they work reliably with Windrose's P2P architecture.
Optimizing Multiplayer Performance and Latency
Once you have a stable connection, the next priority is minimizing latency for a smooth co-op experience. Windrose is sensitive to latency because ship combat requires precise timing, and even 100 milliseconds of delay can cause shots to miss and boarding actions to fail. The ideal latency for Windrose co-op is below 50 milliseconds.
Always use a wired Ethernet connection rather than Wi-Fi for both host and clients. Wi-Fi adds variable latency of 10 to 50 milliseconds and is susceptible to interference from other devices. A Cat6 Ethernet cable provides a stable, low-latency connection that costs less than 15 dollars and makes an immediate difference.
Choose the host wisely. The player with the best internet speed and lowest latency to all other players should host. If most players are in the same geographic region, choose a host in that region to minimize cross-continental routing. Use a speed test to compare connections before starting a session.
Close bandwidth-heavy applications on all connected machines. Streaming services, large downloads, and cloud syncing tools compete for network resources and introduce jitter. Even a background Windows Update download can cause periodic lag spikes that ruin a co-op session. Use the Task Manager's Network tab to identify and close bandwidth hogs.
Finally, if you consistently struggle with P2P performance, consider using a dedicated server. Windrose supports community-hosted dedicated servers that provide a stable, always-on connection point for all players. Setting up a dedicated server requires some technical knowledge, but it eliminates the host dependency and provides the most stable multiplayer experience available.
- Use wired Ethernet for all players
- Host should have the best connection
- Target latency below 50 ms
- Close bandwidth-heavy applications
- Consider a dedicated server for large groups