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Server Not Visible in Browser - Unturned Wiki

Unturned Guide • Updated Jan 6, 2026

Fix Unturned Server Not Visible in Browser

When your Unturned server doesn't appear in the community browser, players can't find and join your server. This is one of the most frustrating issues for server owners, but it's usually fixable with proper configuration.

Why Your Server Isn't Visible

Missing GSLT

Servers without a Game Server Login Token are hidden from the public browser

Firewall Issues

Blocked ports prevent Steam from communicating with your server

Incorrect Configuration

Wrong browser settings or server name format

Step 1: Verify GSLT Configuration

This is the most common cause of visibility issues.

  1. Check your Config.json file in the Browser section
  2. Ensure you have a valid "Login_Token" set
  3. If you don't have a GSLT, create one here
  4. Restart your server after adding the token
{
    "Browser": {
        "Login_Token": "YOUR_GSLT_HERE",
        "Password": "your_password",
        "Name": "My Server Name"
    }
}

Step 2: Check Network Configuration

Port Forwarding

Ensure these ports are open on your server/firewall:

  • Game Port: 27015 (default) - UDP
  • Query Port: 27016 (default) - UDP
  • Steam Port: 27017 (default) - UDP

Firewall Rules

If using a hosting provider, check that:

  • UDP traffic is allowed on the game ports
  • Steam's master servers can reach your server (no IP blocking)
  • Your server's IP isn't blacklisted

Step 3: Verify Server Settings

Server Name Format

Your server name should be:

  • Under 64 characters
  • Free of special characters that might break encoding
  • Descriptive to attract players

Browser Configuration

Check these settings in your Config.json:

{
    "Browser": {
        "Visible": true,
        "Passworded": false,  // or true if you have a password
        "Max_Players": 24,
        "Name": "Your Server Name",
        "Login_Token": "YOUR_GSLT_HERE"
    }
}

Step 4: Test Server Discovery

Direct Connect Test

  1. Find your server's IP and port (e.g., 192.168.1.100:27015)
  2. In Unturned, click "Connect"
  3. Enter your IP:port combination
  4. If you can connect directly, the server is running - the issue is with browser visibility

Steam Server List Check

  1. Wait 5-10 minutes after server restart
  2. Check the community browser again
  3. Try searching for your exact server name
  4. Use the "Favorites" tab and add your server via IP

Troubleshooting Common Issues

Symptom Cause & Fix
Server appears then disappearsGSLT authentication failed. Verify token is valid and restart server.
Only visible via direct connectMissing GSLT or firewall blocking Steam master servers.
Visible but can't connectWrong port configuration or NAT issues. Check port forwarding.
Not in any region filterServer region not set correctly in Config.json.

Advanced Troubleshooting

Check Server Logs

Look for these messages in your server logs:

  • "Browser: Server registered with master server" - Good
  • "Browser: Failed to register with master server" - Network issue
  • "Browser: GSLT authentication failed" - Token problem

Steam Master Server Status

Sometimes Steam's master servers experience issues:

  • Check Steam Status
  • Ask other server owners if they're having similar issues
  • Wait a few hours and try again

Pro Tip: For hosted servers, contact your provider's support. They can often check firewall rules and network connectivity from their end, which is much faster than troubleshooting blind.

Get your Unturned server visible to thousands of players by ensuring proper GSLT configuration and network settings.

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