League of Legends Error 003 – How to Fix This Error

During game play, it’s possible for you to encounter League of Legends error 003. Error 003 generally indicates that there is a lag between your client and the game server. This is often caused by a problem with your client’s connection. However, there are a few things you can do to fix this error.


If you’ve been experiencing occasional League of Legends error 003 issues, there are several quick fixes that you can try. The first step is to restart your computer. To do this, press the Windows key and the X key simultaneously, and then select the option of “Shut down or sign out.” A refresh of your network will also fix this issue. Afterward, try to log into your League of Legends account normally.

Another quick fix is to run the game as an administrator. The League of Legends game client can cause a system crash if it is not running in the administrator user account. To work around this problem, you can install the Hextech Repair Tool. If these two solutions fail, you can try contacting the Riot Games tech support team.

Aside from disabling the firewall, you can also try clearing your PC’s DNS cache. This method will help fix the “attempt to join queue” error. It will also clean up your temporary files and free up some space on your PC’s hard drive.


Firstly, it is important to determine whether your internet connection is causing the problem. If the internet connection is fine, you should be able to connect to the game. If not, then there are a couple of things you can do to get your connection up and running again. One way is to use a VPN to connect to a remote location. Another way to fix this issue is to clear out the cache files in your game. This will refresh the game data.

Another common cause of League of Legends error 003 is a pending Windows update. This could be causing the current error. If so, you can check if there are any available bits on your gaming device and install them. If that does not help, you should uninstall the recent Windows update. If this does not solve the problem, try a game repair utility such as Hextech Repair Tool.

Resetting your network settings may also fix the problem, but this may not be enough in all cases. If the error still persists, you can try disabling your Firewall and restart your PC.


There are several possible solutions to League of Legends error 003, which can help you solve this problem. You can start by reinstalling the game on your computer to make sure that it was installed properly, and that you have enough storage space for the game. To reinstall the game, go to the Control Panel and find the game. Right click on the game, and then select Uninstall. Follow the on-screen prompts to remove the game. Alternatively, you can download the latest version of the game from Riot’s website.

Another possible solution is to restart your system. The game client may have become blocked by your firewall, or a third-party firewall. If you’re having issues launching the game, try launching it as an administrator. You may also want to install the game’s latest update.

You can also use the Hextech Repair Tool to fix various connection problems. The tool is available for free from the Riot Games website and can help you fix errors related to League of Legends.


If you’ve ever received the League of Legends error 003 message, you know just how frustrating it is. It means that you have a problem with your connection. It can happen when you’re trying to install new content or patches, or if your internet connection is unstable. Getting this error can keep you from trying new content or exploring the game’s ever-shifting meta. There are several ways to fix error 003 and get your game back up and running.

Firstly, check your antivirus. It could be preventing the League of Legends launcher from downloading and installing necessary patches and games. Also, make sure to refresh your network. Once you’ve completed this, try logging in and playing the game again.

If you’re playing on a local network, try disabling your firewall. If your system is set to block remote networks, it may be causing the error code 003 on your PC. If you’re using a VPN, this will help you to connect to the League of Legends servers.