The “Error Updating Data” in MTG Arena is a common and frustrating issue for players. It generally indicates that the game client is having trouble connecting to the update servers or that there’s a problem with local game files.
⚠️ What Causes the Error?
This update error is most often triggered by network misconfigurations or interferences like:
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Proxy or VPN interference
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IPv6 connectivity conflicts or DNS issues
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Special characters in your device name (on PC or mobile)
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Third-party tools (like deck trackers) blocking the client
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Corrupted client installation or lingering files
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ISP restrictions or regional update rollout issues
Also Read : Proxy Error 408 Janitor AI | Steps to Fix It
✅ Recommended Fixes
1. Disable Windows Proxy (or macOS Proxy)
On Windows:
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Close MTG Arena completely.
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Go to Settings → Network & Internet → Proxy.
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Turn off:
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Automatically detect settings
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Use setup script
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Use proxy server
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Relaunch the game and wait for the update to complete.
On Mac:
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Open System Preferences → Network → Advanced → Proxies.
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Disable all proxy options unless needed, or enable only automatic discovery if required.
2. Disable IPv6 / Change DNS
Users have reported that IPv6 can interfere with MTG Arena updates:
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Open Control Panel → Network & Internet → Network Connections.
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Right‑click your active adapter → Properties.
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Uncheck Internet Protocol Version 6 (TCP/IPv6).
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Optionally, set DNS to public servers like 8.8.8.8 (Google) or 1.1.1.1 (Cloudflare).
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Restart your PC and retry.
3. Rename Your Device (PC or Mobile)
Some users found that non-English or special characters in their PC/device name caused this bug:
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Rename your system name to use only ASCII letters, numbers, or hyphens (e.g.,
MyDesktopPC, notChloésLaptop). -
Reboot your device before launching Arena again.
4. Uninstall Third‑Party Trackers
Tools like MTGA Assistant have been reported to break updates:
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Temporarily uninstall any deck tracker or overlay tools (MTGA Assistant, MTG Arena Pro, etc.).
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Relaunch MTG Arena to check if update proceeds.
5. Flush DNS, Winsock, or Clean Uninstall
If nothing else helps:
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Flush DNS:
ipconfig /flushdns -
Reset Winsock:
netsh winsock reset -
Uninstall MTG Arena using a cleanup tool (e.g. Revo Uninstaller) to remove all residual files and registry entries.
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Reinstall the game from Wizards website, Steam, or the Epic Games Launcher.
6. Use a VPN or Alternate Launcher
If your ISP blocks or throttles connections:
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Try connecting via a VPN (e.g., ExpressVPN).
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Alternatively, switch platforms: uninstall and reinstall MTG Arena via the Epic Games Launcher, which sometimes resolves update issues.
🧠 Summary Checklist
| Fix Step | Description |
|---|---|
| Disable Proxy Settings | Remove proxy interference |
| Turn off IPv6 / adjust DNS | Use IPv4 only and public DNS |
| Rename device | Avoid special characters |
| Remove third-party tools | Uninstall deck trackers |
| Flush DNS/Winsock | Reset network stack |
| Deep uninstall & reinstall | Use cleanup tools if needed |
| Try VPN or Epic Games Launcher | Bypass ISP or launcher issues |
💬 What Players Are Saying
“Change your device name to not use characters outside the English alphabet … Disabling IPv6 on Windows 10/11 devices are also known to fix the issue.”
“Disabled IPv6 on Windows 10/11, instantly fixed”
“Flush DNS and winsock reset… aka cleared the registry and reinstall with Revo Uninstaller.”
If all else fails:
- Contact MTG Arena Support: If you’ve tried everything above and still face the error, submit a detailed support ticket to Wizards of the Coast customer service. Provide screenshots of the error, details of what you’ve tried, and any relevant log files.
