Fix Error code [l:4] In The First Descendant

“Once Human” is a free-to-play game by Starry Studio. In this open-world survival crafting game, players must survive and fight various monsters. Like any game, it isn’t perfect and has its share of errors and bugs.

Recently, players have encountered the [l:4] Error Code in The First Descendant and shared the experience on Reddit.

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What Is Error Code [l:4]?

This error usually happens because your gaming device can’t connect properly to the game servers. There are some reasons for this, including server problems, network settings, software conflicts, or corrupted game files.

How To Fix Error Code [l:4] In The First Descendant

Here are some solutions to solve this error code in the first descendent, simply follow these steps and you can easily fix it.

Check Server Status

Before trying anything else, check if the game servers are up and running. Sometimes, they might be down for maintenance or experiencing heavy traffic. Here’s how to do it:

Visit the official The First Descendant website.
Check their social media channels like Twitter for any updates.
If the servers are down, you might need to wait until they are back online.

Disable VPN Services

Using a VPN can sometimes mess with your game connection. Here’s what you can do:

Disconnect from your VPN.
Try logging into the game again without the VPN.
If it works, you might need to play without the VPN or adjust its settings.

Reboot Your System

A simple reboot can often fix temporary issues. Here’s how:

Close The First Descendant and any other running applications.
Restart your PC, console, or whatever device you’re using.
Open the game again and see if the error is gone.

Change DNS Settings

Changing your DNS settings can improve your connection. Here’s a step-by-step guide:

For PC Users:

Right-click the network icon in your system tray and select “Open Network & Internet settings.”
Click on “Change adapter options.”
Right-click your active network connection and select “Properties.”
Click on “Internet Protocol Version 4 (TCP/IPv4)” and then click “Properties.”
Select “Use the following DNS server addresses” and enter these values (Preferred DNS server: 8.8.8.8) (Alternate DNS server: 8.8.4.4)
Click “OK” to save the changes.

For Console Users:

Go to your console’s settings menu and select “Network.”

Choose “Advanced settings.”
Select “DNS settings” and switch to “Manual.”
Enter these DNS addresses Primary: 1.1.1.1Secondary: 1.0.0.1
Save the settings and restart your console.

Clear Cache and Cookies

Clearing your game launcher’s cache can help. Here’s how to do it on Steam:

Launch the Steam client.
Click on “Steam” in the top-left corner and select “Settings.”
Go to the “Downloads” tab and click “Clear Download Cache.”
Restart Steam and try logging into The First Descendant again.

Verify Game Files

Corrupted game files can cause login issues. Here’s how to verify game files on Steam:

Launch Steam and go to your library.
Right-click on the game and select “Properties.”
Go to the “Local Files” tab and click “Verify Integrity of Game Files.”
Steam will check and replace any missing or corrupted files.

Check Network Configuration

Sometimes, your network settings like port forwarding or firewall rules can block game connections. Here’s what you can do:

Open your web browser and enter your router’s IP address to access the settings.
Look for “Port Forwarding” or “Port Triggering.”
Add a new rule with these details:

Service Name: The First Descendant 
Protocol: TCP/UDP
External Port: 80, 443, 3478-3480
Internal IP: Your device’s IP address
Internal Port: 80, 443, 3478-3480

Save the settings and restart your router.

Reinstall the Game

If nothing else works, try reinstalling the game:

Go to your game library, right-click on the game, and select “Uninstall.”
Download and install The First Descendant again from your preferred launcher.

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