GearUP Booster

Fortnite Network Error Codes Collection - Causes and Solutions


Fortnite, the immensely popular multiplayer online battle royale game, pits players against each other in a vibrant and dynamic arena. In this expansive online world, it's not uncommon to encounter a variety of network error codes. Some may appear while trying to log in, while others might disrupt gameplay, hindering the gaming experience.


Given the complexity and variety of these error codes, pinpointing the precise solution can often be challenging. To assist players in navigating through these technical obstacles, this guide compiles a list of common Fortnite network error codes and their corresponding troubleshooting methods. Our aim is to provide helpful insights to get you back in the game without hassle.




Error Code: LS-0003

Error Code: IS-0009

Error Code: ESP-RHI-01

Error Code: MA-0005

Error Code: MD-0005


Fortnite Network Error Codes Collection




Different Fortnite Error Codes


Error Code: LS-0003

To resolve this issue displaying "You're not signed into the Epic Games Launcher," follow these steps:

  • Launch the Epic Games Launcher.
  • Enter your Epic Games account email and password.
  • Click on "Log In Now."
  • If prompted for a 2FA code, enter it on the next screen.


Error Code: IS-0009

This error occurs when the launcher cannot download a game due to a corrupt or invalid file.

  • Exit the Epic Games Launcher by right-clicking on its system tray icon and selecting "Exit."
  • Navigate to the game's installation directory (usually C:\Program Files\Epic Games).
  • Delete the folder related to the game showing this error.
  • Restart the Epic Games Launcher and try installing the game again.


Error Code: ESP-RHI-01

This error often appears when starting Fortnite or Save The World:

Close the Epic Games Launcher:

  • Click on the chevron icon in the lower right corner.
  • Right-click on the Epic icon in the pop-up window and select "Exit."

Delete certain folders:

  • Press Windows key + R to open a run window.
  • Type "%localappdata%" and press Enter.
  • Delete both "EpicGamesLauncher" and "FortniteGame" folders.
  • Launch Fortnite again.


Error Code: MA-0005

This error occurs when no browser is set as default:

Set up a default browser:

  • For Windows 7/8/10 (64-bit), go to Windows Settings > Apps > Default Apps, then choose a web browser under "Web Browser."
  • For Windows 11, go to Windows Settings > Apps > Default Apps > "Choose defaults by type." Type ".html" in the search bar and select your preferred browser for opening .html files.


Error Code: MD-0005

This error is typically caused by service interruptions or networking issues related to your internet connection. You can check Fortnite server status or consult technical support for assistance.



Best Way to Fix Fortnite Network Issues


Finding individual solutions for each error code can be time-consuming; however, using network optimization tools like GearUP Booster can provide an easier solution specifically designed for gaming purposes. Unlike traditional VPNs, GearUP Booster prioritizes your game data transmission at its highest level, ensuring network stability and minimizing various network error codes while reducing latency and packet loss for an improved gaming experience.


GearUP Booster incorporates exclusive technology utilizing global network nodes for optimal server connections while ensuring encrypted data transmission without compromising security concerns during gameplay. Additionally, professional technical support is readily available should you encounter any issues while using GearUP Booster.



  • Free trial.
  • Multiple exclusive technologies.
  • Effective safeguarding of data security.
  • Resolving network issues in Fortnite gameplay.
  • Support thousands of games.
  • User-friendly.


Step 1: Download GearUP Booster




Step 2: Search Fortnite.


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Step 3: Select Server and Node.


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Step 4: Remember Click "Confirm" first, and then launch your game.





To conclude, By utilizing GearUP Booster or following the provided troubleshooting steps for specific error codes in Fortnite, players can enhance their gaming experience by minimizing connectivity issues and enjoying smoother gameplay.