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Hytale Server Troubleshooting Guide

Here are common Hytale server issues and how to fix them.

Failed to Connect to Server

Common error messages:

  • "Failed to Connect to Server. The host may be offline or behind a strict firewall"
  • "Could not connect to any available address"
  • "An unexpected error occurred"
  • I18nModule.getMessages (I18nModule.java:315)

Change Your System Language (I18nModule Fix)

The most common cause of the I18nModule.getMessages error is a language or locale mismatch on your system.

Windows
  1. 1
    Open Settings → Time & Language → Language & region.
  2. 2
    Set your Windows display language to English (United States).
  3. 3
    Under Regional format, select English (United States).
  4. 4
    Restart Hytale completely.
macOS
  1. 1
    Open System Settings → General → Language & Region.
  2. 2
    Set Primary language to English.
  3. 3
    Set Region to United States.
  4. 4
    Restart Hytale.

Disable Your Firewall

If the error mentions "strict firewall," your Windows Firewall or antivirus might be blocking the connection.

  1. 1
    Search for Windows Defender Firewall in the Start menu.
  2. 2
    Click Turn Windows Defender Firewall on or off.
  3. 3
    Select Turn off Windows Defender Firewall for both Private and Public networks.
  4. 4
    Try connecting to the server again.

If this fixes the issue, add Hytale as an exception rather than leaving your firewall disabled:

  1. 1
    Go back to Windows Defender Firewall.
  2. 2
    Click Allow an app through firewall.
  3. 3
    Click Allow another app and browse to your Hytale installation.
  4. 4
    Make sure both Private and Public are checked.
  5. 5
    Turn your firewall back on.

Sync Your System Clock

An incorrect system time can cause authentication failures when connecting to servers.

Windows
  1. 1
    Right-click the clock in your taskbar.
  2. 2
    Select Adjust date/time.
  3. 3
    Enable Set time automatically.
  4. 4
    Click Sync now.
macOS
  1. 1
    Open System Settings → General → Date & Time.
  2. 2
    Enable Set date and time automatically.

Check Your IP Address and Port

Double-check you're using the correct connection details:

  • Confirm the IP address with the server host
  • Include the port number if it's not the default
  • Check for any typos

Verify the Server Is Online

Before troubleshooting further, make sure the server is actually running:

  • Check the Game Host Bros Panel to verify it's online
  • Check for error messages in the server console

Slow Connection / World Not Loading

Symptoms:

  • Your internet is stable (YouTube works fine)
  • Singleplayer loads normally
  • Server connection is very slow or world won't load
  • Friends can see you move but you can't do anything
  • You're on Windows

Cause: Some Intel & Realtek network drivers have issues with QUIC, the modern protocol Hytale uses. This affects both Wi-Fi and Ethernet.

Confirm the issue: Connect an Ethernet USB dongle. If that fixes it, follow the solutions below.

Access Network Settings

  1. 1
    Open Start Menu and type View network connections.
  2. 2
    Select the Control Panel link.
  3. 3
    Right-click your network connection and select Properties.
  4. 4
    Click Configure.
  5. 5
    Go to the Advanced tab.

Try each solution below. Test after each one - you may not need all of them.

Solution 1: Disable Priority & VLAN

  1. 1
    Find Priority & VLAN in the list.
  2. 2
    Set it to Priority & VLAN Disabled.
  3. 3
    Click Ok and wait for your connection to restore.
  4. 4
    Try connecting to your server.

Solution 2: Disable Segment Coalescing

  1. 1
    Find Recv. Segment Coalescing (IPv4) and set to Disabled.
  2. 2
    Find Recv. Segment Coalescing (IPv6) and set to Disabled.
  3. 3
    Click Ok and wait for your connection to restore.
  4. 4
    Try connecting to your server.

Solution 3: Disable Power Saving Features

  1. 1
    Set the following to Disabled:
    • Advanced EEE
    • ARP Offload
    • Energy-Efficient Ethernet
    • Flow Control
    • Green Ethernet
  2. 2
    Click Ok and wait for your connection to restore.
  3. 3
    Try connecting to your server.

Solution 4: Full Network Reset

Caution

This is invasive and may be difficult to reverse without reinstalling drivers.

If nothing else works, apply all these settings:

SettingValue
Advanced EEEDisabled
ARP OffloadDisabled
EEE Max Support Speed1.0 Gbps Full Duplex
Energy-Efficient EthernetDisabled
Flow ControlDisabled
Gigabit LiteDisabled
Green EthernetDisabled
Interrupt ModerationDisabled
IPv4 Checksum OffloadRx & Tx Enabled
Jumbo FrameDisabled
Large Send Offload v2 (IPv4)Disabled
Large Send Offload v2 (IPv6)Disabled
Maximum Number of RSS Queues4 Queues
NS OffloadDisabled
Power Saving ModeDisabled
Priority & VLANDisabled
Receive Buffers512
Receive Side ScalingEnabled
Shutdown Wake-On-LanDisabled
Speed & DuplexAuto
TCP Checksum Offload (IPv4)Disabled
TCP Checksum Offload (IPv6)Disabled
Transmit Buffers1024
UDP Checksum Offload (IPv4)Disabled
UDP Checksum Offload (IPv6)Disabled
VLAN ID0
Wake on Magic PacketDisabled
Wake on pattern matchDisabled
WOL & Shutdown Link SpeedNot Speed Down
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