5 Ways to Fix the ESP Buimet 003 Fortnite Error on a Windows PC

The ESP Buimet 003 error is a widely reported Fortnite issue many players have encountered. This error occurs when players try to log in and play Fortnite matches. When this issue arises, players see this message, “An error occurred while connecting to Epic servers… ESP-Buimet-003.” Consequently, Fortnite cannot establish a server connection and players can’t play the game. That error can arise on Windows PCs and consoles. This is how you can fix the ESP Buimet 003 Fortnite error on Windows 11/10 PCs.

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Check Fortnite’s Server Status

The first thing I recommend doing is to check the status of the Fortnite server. Sometimes the ESP Buimet 003 Fortnite error can occur because Fortnite’s server is down. To check, click Fortnite on this Epic server status page. If that page shows not everything is operational, wait until Epic resolves the server-side issues.

The Fortnite server status page

Flush Your PC’s DNS Cache

Some Fortnite players have fixed the ESP Buimet 003 error by executing commands that flush the DNS cache and resetting the Winsock catalog. Those are standard troubleshooting commands for fixing network connectivity issues. This is how you can flush the DNS cache and reset the Winsock catalog.

1. Hold the Windows logo key and press S to access the search tool.
2. Find the Command Prompt by entering cmd into the file search box.
3. Run Command Prompt with elevated privileges by right-clicking that app in your search results and selecting Run as administrator.
4. Next, input and execute an ipconfig /flushdns command to clear your PC’s DNS cache.
   
   

   The flush DNS command

5. Enter netsch winsock reset and press Return.

Set a Google DNS

The ESP Buimet 003 Fortnite error frequently occurs because of ISP DNS issues. Epic’s official resolution for this issue is to set a Google DNS, which you can do on PCs and consoles. These are the steps for setting a Google DNS on Windows PCs.

1. Start Run by pressing a Windows logo + R hotkey to open that command dialog box.
2. Input ncpa.cpl into Run and click OK to view a Network Connections applet inside the Control Panel.
3. Right-click the adapter for your internet and select Properties.
   
   

   The Properties context menu option

4. Double-click Internet Protocol Version 4 to access a settings window for IPv4.
5. Select Use the following DNS server address to access Domain Name System settings.
6. Input 8.8.8.8 for the Preferred DNS box.
7. Enter an 8.8.4.4 value in the box for the Alternative DNS setting.
   
   

   The Use the following DNS server addresses option

8. Click OK on the IPv4 window.

Clear the Cache for Epic Games

Fortnite players also confirm clearing the cache for Epic Games can resolve the ESP Buimet 003 error. You can do that by deleting webcache folders within the EpicGamesLauncher data folder like this.

1. Start Run, input %localappdata%, and click OK to bring up a Local data folder.
2. Next, click the EpicGamesLauncher in the Local directory.
3. Open the Saved subfolder.
4. Hold the Ctrl key to select the webcache, webcache_4147, and webcache_4430 folders.
5. Right-click and select Delete to erase the selected folders.
   
   

   The Delete context menu option

6. Open the Config subfolder in the Config folder.
7. Right-click the CrashReportClient folder and select Delete.
8. Exit File Explorer, restart your PC, and try playing Fortnite again.

Reinstall Fortnite (Preferably on a Different Drive Partition)

Some users have confirmed they fixed the ESP Buimet 003 error by reinstalling Fortnite on different drives. So, reinstalling Fortnite on the C: drive could be worth trying If you’ve installed the game on any alternative partition or external drive. This is how you can reinstall Fortnite.

1. Open the Epic Games Launcher window and click Library.
2. Click the ellipses button with three dots for the Fortnite game.
3. Select Uninstall twice to remove Fortnite.
   
   

   The Uninstall option Epic Games Launcher

4. Restart Windows after uninstalling Fortnite.
5. Reopen Epic Games and click Fortnite in the Library tab.
6. Click Browse to select a location on your C: drive.
   
   

   The Install option

7. Reinstall Fortnite by clicking Install.

Those confirmed potential fixes will probably resolve the ESP Buimet 003 error on most players’ Windows 11/10 PCs. Some of those resolutions can also fix the same issue on consoles, but you’ll need to apply them differently. With the ESP Buimet 003 error fixed, you can return to the battle royale mayhem in Fortnite again.