🎮 Game Error Codes What it means & how to fix it

DayZ Error Codes

Since Update 1.12 DayZ shows two-part hex error codes when you can't connect to or get kicked from a server. The category (first four digits) tells you the phase — 0001 connecting, 0002 rejected, 0004 kicked — and the second half names the exact reason. Most player-facing ones are version mismatches, unstable network, or modified/corrupt data flagged by BattlEye. Here's what the common codes mean and the fastest fix.

Error codes

0x00010006 — VERSION_MISMATCH Your installed game version is not compatible with this server

Cause: A pending game update you haven't installed, or the server is on a newer/older build than your client.

Fix:
  1. Fully close DayZ and the launcher so Steam can install the pending update, then relaunch.
  2. In Steam, force an update check (Library -> DayZ -> right-click -> Properties -> Updates), and verify integrity of game files.
  3. Only join servers running the same build as your client — modded servers often lag official patches.
0x0004000A — UNSTABLE_NETWORK The server kicked you because your connection to it is unstable

Cause: Packet loss, high ping, Wi-Fi drops, or ISP routing problems between you and the server.

Fix:
  1. Switch to a wired Ethernet connection and close bandwidth-heavy apps/downloads.
  2. Pick a server with lower ping/closer region, and restart your router to get a fresh route.
  3. Flush DNS and reset the network stack (ipconfig /flushdns; netsh winsock reset), then retry.
0x00040009 — MODIFIED_DATA The server detected modified data or a corrupted install and kicked you

Cause: Corrupted/edited game files, leftover mods, or a BattlEye integrity check failing.

Fix:
  1. Verify integrity of game files in Steam to replace corrupt/modified files.
  2. Remove leftover mods and make sure your mod list exactly matches the server's.
  3. Reinstall BattlEye (Steam -> DayZ -> ... -> _CommonRedist or run the BattlEye installer) and whitelist BEService in your antivirus/firewall.
0x00010003 — ERROR_MSG_SHOWED / "Please confirm the error on screen" A previous error dialog is still open and blocking a new connection attempt

Cause: An unconfirmed error message from a prior failed join.

Fix:
  1. Click OK/confirm on the on-screen error, then try to connect again.
  2. If no dialog is visible, restart the game to clear the stuck state.
  3. Then address the underlying error (usually version or network) that first triggered it.
0x0001000E — COMMUNICATION_TIMED_OUT / 0x0002000C — TIMEOUT The connection timed out with no response from the server

Cause: The server is full, restarting, unreachable, or blocked by your firewall.

Fix:
  1. Wait and retry — the server may be restarting or briefly overloaded.
  2. Allow DayZ and DayZ_x64.exe through Windows Defender Firewall on Private and Public networks.
  3. Try a different, lower-ping server to confirm it's that server and not your connection.
0x00020004 — SESSION_FULL The server has reached its maximum number of players

Cause: The server is at capacity when you try to join.

Fix:
  1. Wait for a slot to open, or join a queue if the server supports one.
  2. Pick another server (community servers vary in population through the day).
  3. Favourite a few servers so you can hop quickly when one is full.

Fixes that work for most DayZ (PC, PlayStation 5, Xbox Series X|S) errors

  1. Verify/repair the game files (Steam: Properties -> Installed Files -> Verify integrity; EA app/Epic/Ubisoft: Manage -> Repair) — this replaces corrupted files behind most crashes and connection faults.
  2. Update your GPU driver with a clean install (use DDU), and install the latest Microsoft Visual C++ Redistributables (x86 and x64) plus the DirectX End-User Runtime — missing runtimes and stale drivers cause most launch crashes.
  3. Flush your DNS and reset the network stack (ipconfig /flushdns; netsh winsock reset; netsh int ip reset), switch to Google (8.8.8.8) or Cloudflare (1.1.1.1) DNS, and prefer a wired connection over Wi-Fi to cut packet loss.
  4. Disable overlays (Steam, Discord, GeForce Experience) and any VPN, and add the game plus its anti-cheat (e.g. BattlEye/EasyAntiCheat) to your firewall and antivirus exceptions.
  5. Check the game's official server/status channels (X, Discord, Downdetector) before assuming a local problem — many named connection errors are a maintenance window or outage and clear on their own.

FAQ

How do I fix DayZ error 0x00010006 (version mismatch)?

0x00010006 means your installed DayZ version isn't compatible with that server. Fully close DayZ and the launcher so Steam can finish installing the pending update, then relaunch. Force an update check in Steam (Properties -> Updates) and verify the integrity of the game files. Only join servers on the same build as your client — modded servers often lag the latest official patch.

What does DayZ error 0x00040009 mean and how do I fix it?

0x00040009 is MODIFIED_DATA — the server detected modified or corrupted game data and kicked you, usually flagged by BattlEye. Verify the integrity of your game files in Steam, remove any leftover mods so your mod list exactly matches the server's, reinstall BattlEye, and whitelist BEService in your antivirus and firewall.

Why does DayZ keep kicking me with 0x0004000A?

0x0004000A is UNSTABLE_NETWORK — the server dropped you because your connection to it is unreliable, from packet loss, high ping or Wi-Fi drops. Switch to a wired Ethernet connection, close downloads and bandwidth-heavy apps, pick a lower-ping server, restart your router, and flush your DNS (ipconfig /flushdns; netsh winsock reset).

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