Brawl Stars Server Error 43 | How to Fix

A “Server error 43” in Brawl Stars typically indicates a connection issue between your device and the game’s servers. This is a generic error code that has been reported by players for a while and can be caused by a variety of factors.

Here’s a breakdown of the causes and how you can fix it:

What Causes Server Error 43?

• Unstable Internet Connection or Network Issues

  • The game often loses sync with the server if your connection is weak or unstable.

• Server Maintenance or Outages

  • The error can occur if Supercell’s servers are down or undergoing maintenance—you’ll have to wait until they’re back online.

• Bugs or Glitches Related to Specific Gameplay Situations

  • Historically, Server Error 43 was triggered during Boss Fight by knockbacks (e.g., from Shelly or Primo), causing abrupt disconnects.

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How to Fix It

Here are steps to try immediately when you encounter this error:

1. Check Your Internet Connection

   • Restart your router or switch from Wi-Fi to mobile data (or vice versa).

   • If available, try a different network to rule out local connection problems.

2. Restart Your Device

   • A simple reboot can resolve many transient issues.

3. Update the Game

   • Make sure you’re running the latest version of Brawl Stars—updates often address connection bugs.

4. Clear Cache or Reinstall the Game

   • On Android: Go to Settings → Apps → Brawl Stars → Storage → Clear Cache.

   • On iOS: Delete and reinstall the app.

5. Use a VPN (Optional)

   • In some cases, network routing issues can be bypassed by connecting through a VPN.

6. Check Server Status

   • Visit Supercell’s official socials or use websites like DownDetector to confirm if their servers are down.

7. Contact Support If Necessary

   • If none of the above resolves the issue, reach out to Supercell’s support through the in-game “Help and Support” section.

What Players Share (via Reddit)

From player experiences, particularly during Boss Fight, Error 43 was often linked to knockback mechanics:

“sometimes you get server error 43 … when any form of knockback is applied to the boss as it is about to charge”

“Happens when someone knockbacks the boss when it charges. (Shelly super, primo super or gadget usually)”

Although many of these specific bugs have been patched in the past, they highlight how game mechanics can sometimes inadvertently trigger connection errors.

Quick Fixes Checklist

Summary

Server Error 43 usually stems from network instability, server outages, or rare game-specific glitches. Try restarting your connection, device, and keeping your game updated first. If that doesn’t work, clear cache or reinstall, monitor server status, and contact support if needed.