DayZ Error Codes Explained

Note:

Not every error code means something is broken.

Most DayZ error codes are status messages that point you in the right direction, once you know how to read them, diagnosing issues becomes much easier.

DayZ error codes appear when something prevents the game client from connecting to a server or completing an action correctly.

Some errors are caused by local player issues, while others point to server-side configuration or version mismatches.

What Are DayZ Error Codes?

DayZ error codes are numeric messages shown by the game client when:

• A connection attempt fails
• The server rejects the client
• Game versions or mods don’t match
• The server is unavailable or restarting

Not every error indicates a server problem, many are client-side and cannot be fixed from the server panel alone.

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Common DayZ Error Codes Explained

Below are the most frequently encountered and actionable DayZ error codes on community and hosted servers.

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Error Code: 0x00010001

Connection Failed / Server Not Responding

What it means

• The client cannot reach the server

Common causes

• Server is offline or restarting
• Server IP or port is incorrect
• Temporary network issue

What to check

• Make sure the server is fully started
• Verify the IP and port in the server browser
• Wait a few minutes after a restart before reconnecting

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Error Code: 0x00020009

Bad Version / Version Mismatch

What it means

• The client and server are running different game versions

Common causes

• Server updated but client didn’t
• Client updated before the server

How to fix

• Restart the server to force updates
• Restart Steam and verify game files on the client
• Wait for the server to finish updating

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Error Code: 0x00030001

Server Is Unreachable

What it means

• The server cannot be contacted at all

Common causes

• Server is offline
• Firewall or routing issue
• Incorrect server address

What to check

• Confirm the server status in the panel
• Double-check the connection details
• Try connecting via Direct Connect instead of browser

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Error Code: 0x00040002

Authentication Failed

What it means

• Steam authentication could not be completed

Common causes

• Steam outage
• Player not logged into Steam properly
• Temporary authentication issues

How to fix

• Restart Steam
• Log out and log back in
• Try again after a few minutes

This error is not server-related in most cases.

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Error Code: 0x00050001

BattleEye / Signature Check Failed

What it means

• The server rejected the client due to signature verification

Common causes

• Mods missing or outdated
• Corrupted mod files
• Incorrect mod load order

How to fix

• Make sure client mods match the server exactly
• Verify mods via Steam Workshop
• Restart both client and server after mod updates

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Error Code: 0x00060004

Server Full

What it means

• The server has reached its maximum player limit

How to resolve

• Increase maxPlayers in serverDZ.cfg
• Wait for a player to disconnect

This is expected behaviour, not an error.

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Error Code: 0x00070003

You Were Kicked From the Server

What it means

• The server manually removed the player

Possible reasons

• Admin kick
• Whitelist enabled and player not allowed
• Server rules enforcement

What to check

• Whitelist settings
• Admin actions
• Server logs for kick messages

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Errors You Cannot Fix as a Server Owner

Some DayZ error codes are purely client-side and cannot be resolved from the server:

• Steam outages
• Local network issues
• Corrupted client installs
• Launcher-related problems

In these cases, the player must troubleshoot their own system.

Where to Find More Details

This guide focuses on the most common and relevant error codes you’ll encounter while managing a DayZ server.

For a complete technical reference, including internal and engine-level error codes, see the official documentation:

Bohemia Interactive – DayZ Error Codes

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Tips for Troubleshooting Error Codes

• Always restart the server after updates or config changes

• Ask players to fully restart Steam when connection errors appear

• Check server logs for additional context

• Avoid changing multiple settings at once when diagnosing issues

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