Are you trying to install a patch for League of Legends and is an error code 003 popping up on your screen? Do you want to know what that code means and why it shows up? Don’t sweat, this guide will help you fix the error with easy-to-follow troubleshooting methods.

League of Legends is an online multiplayer battle arena game where you have the option to be a part of one of the two teams. Each team has 5 powerful champions and they face off to destroy each other’s base. You have the option to choose from 140 champions to battle your way to victory. It is a fun and must-have game for newbies and pro gamers alike.

However, when you should be enjoying the game and figuring out its different options, you can sometimes get stuck with its many errors which can cause your fun to end abruptly. Let’s find out why the error code 003 is so common in League of Legends.

What Does League of Legends Error Code 003 Mean?

A lot of users reported that when they try to install the latest patch for the League of Legends game to correct bugs in the game, they receive the following error.

“Something’s up with our servers and it’s preventing you from patching. We are giving it another shot. In the meantime, you can check the status of our servers here”

This error message is followed by a specific code, 003. The error basically means that there is a lag between the server and the client connection that can either be due to a problem with the server or with the client’s internet connection.

What Causes the 003 Error Code?

If you are experiencing the error code 003 while trying to install a patch for League of Legends, it can be due to one of the following reasons.

  • The League of Legends servers are experiencing a technical issue due to a maintenance upgrade or a bug in the system
  • The content you downloaded to apply the patch is corrupted due to your unstable internet connection that results in important files getting corrupted
  • Your Antivirus is blocking your to install the League of Legends patch on your system
  • You are installing the patch from a remote location and the League of Legends server is flagging it as suspicious
  • You have turned off Windows update

How To Fix League Of Legends Error Code 003?

To fix the error, one of the following solutions can work in your favour.

Manually Delete Corrupt Patch File

You may have some updated content that came bundled with a recent update but has now gotten corrupted and is not letting the launcher execute the patch. Therefore, you need to delete all the content in the League of Legends folder and reinstall by using the launcher. To do this:

  • Go to your League of Legends folder
  • Now click on the RADS folder and then go to Projects –> League client folder
  • Scroll and locate the highest number release folder
  • Select all the files in the release folder and delete everything
  • Next, right-click on the Leauge of Legends launched and choose “Run as administrator”
  • Run the installer and verify that the game is patching itself back

Use The Hex Tool

Sometimes, you need to use a tool to get rid of the errors in your game. In this case, the Riot Games Hextech repair tool is a great choice to repair the corrupt patch files. Follow these steps to clean up whatever is messing with your client application.

  • Download the Hextech repair tool and run the .exe file to install the tool
  • Next, open the tool with administrative rights as mentioned in the above fix
  • Follow the instruction to let the tool repair your League of Shadows game
  • Verify that the error code 003 is fixed

Re-route With A VPN

You may be trying to install the patch from a remote location that is on the block list of the League of Legends servers. Therefore, we recommend using a VPN before trying to apply the patch. A lot of times, this simple fix can get the game back in working order.

Disable Antivirus and Windows Firewall

Sometimes, your Antivirus and firewall settings cause the annoying error code 003 while patching. Your Antivirus and firewall settings could be blocking the client connection to the League of Legends server. So, you can try disabling the Antivirus and turning off the firewall and see if that fixes the error.

Check LOL Server Status

If none of the above-mentioned fixes works for you, you need to check the updated status of the League of Legends server. If the server is down for maintenance or some other technical difficulty, your only option is to wait for the developer to get the server back up and running.


We hope that this article acts as a useful guide to fix the League of Legends error code 003 on your computer. Before applying any troubleshooting method, we recommend that you turn on the Windows update and restart your computer. This helps your chances to fix the common errors as quickly as possible. Keep gaming!