How to Connect to Your Killing Floor 2 Server
Learn how to find your server IP and connect to your Killing Floor 2 dedicated server using the server browser or console command.
Here's how to find your server's IP address and connect to your Killing Floor 2 server. You can join via the in-game server browser or by using a console command for direct connect.
Finding Your Server IP
Open the XGamingServer panel
Log in to the XGamingServer panel and select your Killing Floor 2 server.
Locate your IP address
Your server IP address is displayed in the sidebar (e.g., 198.137.23.46:7777).
💡 Tip: Click the IP address to copy it to your clipboard. The number before the colon is the IP address, and the number after is the game port — you'll need both to direct connect.
Understanding Killing Floor 2 Ports
Killing Floor 2 uses multiple ports for different services:
| Port | Protocol | Purpose |
|---|---|---|
| 7777 | UDP | Game port — players connect here |
| 27015 | UDP | Steam query port — used by the server browser |
| 8080 | TCP | WebAdmin port — browser-based admin panel |
The game port (7777) is the one you'll use when connecting. The query port allows the server browser to display your server's information, and the WebAdmin port is for the browser-based admin panel.
Using the Server Browser
Open Multiplayer
Launch Killing Floor 2 and select Matchmaking > Browse Servers from the main menu.
Set your filters
Use the filter options to narrow down the server list:
- Set Game Type to match your preferred mode (Survival, Versus Survival, Weekly, Endless)
- Set Difficulty to your preferred setting
- Uncheck Not Full and Not Empty if you want to see all servers
Search for your server
Look for your server by name in the server list, or use the search bar at the top.
Join your server
Select your server and click Join.
The server browser shows useful information before you connect:
- Player count — How many players are currently in the game
- Map — Which map is currently active
- Difficulty — The current difficulty setting
- Game type — Survival, Versus Survival, Endless, or Weekly
- Ping — Your latency to the server (lower is better)
- Lock icon — Indicates the server requires a password
Direct Connect via Console
If your server doesn't appear in the browser or you want to connect faster:
Open the console
Press the tilde key (~) to open the in-game console. If the console doesn't open, enable it in Settings > Game > Enable Console.
Enter the connect command
Type the following command, replacing the IP and port with your server's details:
open 198.137.23.46:7777Press Enter
The game will connect directly to your server.
If the server has a password, add it to the command:
open 198.137.23.46:7777?password=YourPasswordConnecting via Steam
You can also connect through Steam's server browser:
Open Steam
In the Steam client, go to View > Game Servers.
Add your server to Favorites
Click the Favorites tab, then click Add Server. Enter your server's IP and query port (e.g., 198.137.23.46:27015).
Connect
Right-click the server and select Connect.
📝 Note: The Steam server browser uses the query port (27015), not the game port (7777). If you add the wrong port, the server won't show up.
Troubleshooting Connection Issues
If you can't connect to your server:
- Server not showing in browser — Make sure the server has fully started. Check
Consoleon the XGamingServer panel for startup progress. It can take a minute or two for the server to register with Steam. - "Connection failed" — Verify the IP address and game port are correct. Try restarting the server from the panel.
- Stuck on loading screen — The server may be switching maps. Wait for the map transition to complete, or try reconnecting.
- Version mismatch — Make sure your game client is updated. Killing Floor 2 updates automatically through Steam.
- Password prompt — The server has a password set. Ask the server owner for the password.
Adding Your Server to Favorites
After finding your server in the browser:
Find your server
Locate your server in the Browse Servers list.
Add to Favorites
Right-click the server and select Add to Favorites.
Access from Favorites
Your server now appears under the Favorites tab for quick access in future sessions.
If you get stuck at any time, you can join our Discord.
How is this guide?
How to Configure Your Killing Floor 2 Server
Learn how to configure your Killing Floor 2 server using config files, startup parameters, and the WebAdmin panel.
How to Set a Password on Your Killing Floor 2 Server
Learn how to password protect your Killing Floor 2 server for private sessions and restricted access.