LoL Error Code 900: Everything You Need to Know

Errors in popular games keep coming up. Especially the errors in VALORANT and LoL can be frustrating for players, but as the Gamer Papers family, we try to share solutions to these errors with you as best we can. One significant error that has come up recently is LoL error code 900. Players have started asking how LoL error code 900 is fixed. Let's see how this error gets resolved.

LoL Error Code 900 Fix 2023

Reset the Game Client

All you need to do here is repeat the boot-up process:

• Press ALT+F4
• Log out
• Press Ctrl+Shift+Esc to open Task Manager
• End all League of Legends processes
• Open the Riot Games Client
• Log back in

After doing this, you'll have redone the boot-up process and the problem should be gone.

Restart Your Internet Router

The issue could also stem from your internet connection. So we have a simple fix that most players should be able to figure out on their own — restarting your router. We recommend doing this once a week to make sure your router is running at its best. This will be especially useful for those who don't use an ethernet cable for a wired connection and instead rely on WiFi for a stable internet connection.

Reset Your Network Settings

The issue could be entirely software-related. So you can reset your network settings by following these steps:

• Right-click the Start button
• Select Settings
• Select Network & Internet
• Click Network Reset under Advanced Settings
• Reset your network settings
• Restart your PC

Reinstall the Game

This issue can also occur due to corruption in your game files. To fix this:

• Click the search bar in the bottom-left corner of your screen.
• Then type Apps & Features.
• Open Apps & Features.
• Search for League of Legends.
• Select it, then choose Uninstall League of Legends.

Create a Firewall Exception

• Open Control Panel
• Click System and Security
• Open the Windows Defender Firewall screen
• Click Allow an app or feature through Windows Defender Firewall
• Find lol.launcher.exe and systemrads_user_kernel.exe and check the boxes next to them
• Click OK to save the changes

Submit a Support Ticket to Riot Games

If none of this worked, your last step may be to submit a support ticket to Riot Games. Contacting Riot Games and waiting for their support on the matter will be the most sensible thing to do.