4 Easy Methods to Fix ‘Conan Exiles Authentication Failed’ Error

The “Authentication failed” error appears to users playing Conan Exiles on Windows and it’s usually difficult to predict it or to pinpoint a direct cause on your computer. The error appears trying to join a game both on public and private servers and it prevents users from playing the game at all.

Conan Exiles Authentication Failed Error

The problem is quite infamous and it’s possible to find many different methods which can be used to resolve the problem. We have included the ones that have been confirmed to have helped people and have written them down step-by-step in this article. Check it out below.

What Causes the Conan Exiles Authentication Failed Error on Windows?

Two distinct causes stand out when analyzing this problem and you should pay attention if one of these causes could be applied to your scenario as it will save you a significant amount of time. Check it out below and you will be one step closer to the final solution!

  • Faulty BattlEye installation – BattlEye is the anti-cheat tool the game uses to check if you are using any prohibited tools to improve your in-game performance. If this installation is faulty, it might prevent you from joining a server so make sure you reinstall it just in case!
  • The game is blocked in Windows Defender Firewall – If the game doesn’t have proper access to the Internet, errors such as this one are bound to occur. Since it’s probably your firewall which is blocking the connection, you should consider allowing the game through.

Solution 1: Reinstall BattlEye With Administrator Permissions

It’s possible that your anti-cheat tool, BattlEye, is misbehaving and preventing you from joining any games as fails to authenticate your account and your other data. The easiest way to handle such issues is to simply reinstall it from the game’s installation folder. Follow the steps below in order to do so!

  1. Open Steam by double-clicking its shortcut on the Desktop or by searching for it in the Start menu simply by typing “Steam” after clicking the Start menu button or the Search (Cortana)
Opening Steam in Start menu
  1. After the Steam client opens, navigate to the Library tab in the Steam window at the menu located at the top of the window, and locate the Conan Exile entry in the list.
  2. Right-click the game’s icon in the Library and choose the Properties option from the context menu which will open and make sure you navigate to the Local Files tab in the Properties window straight away and click the Browse Local Files
Steam: Browse local files
  1. You can also search for the game’s main executable by clicking the Start menu button or the search button next to it and typing Conan Exile. Anyway, right-click on the executable and choose the Open file location option from the context menu which will appear.
  2. Locate the BattlEye folder and double-click in order to open it. Right-click the BattlEye installer file in the folder and choose the Run as administrator option from the context menu which will appear.
Locating the BattlEye Folder
  1. Make sure you exit the Steam client on your computer completely by clicking Steam >> Exit from the top-side menu. Check to see if the “Authentication failed” error message still appears when trying to join a server in Conan Exile!

Solution 2: End the Conan Exiles Task in Task Manager

This method will restart the game properly and you can check if the problem persists. This method has helped many users and you will be lucky if it works out for you as it’s definitely the easiest method to perform on our list. Check it out below!

  1. Open the game and wait for the error to appear. Use the Ctrl + Shift + Esc key combination by pressing the keys at the same time to open the Task Manager utility.
  2. Alternatively, you can use the Ctrl + Alt + Del key combination and select Task Manager from the popup blue screen which will appear with several options. You can also search for it in the Start menu.
Running Task Manager
  1. Click on More details at the bottom left part of the window in order to expand Task Manager and search for the Conan Exile (Conan.exe) It should be located right under Apps. Select it and choose the End task option from the lower right part of the window.
Ending the Conan Exile task in Task Manager
  1. Check to see if the problem has been resolved and if you are still struggling to open join a server in Conan Exile. Wait to see if the “Authentication failed” error message still appears!

Solution 3: Allow Conan Exile in Windows Defender Firewall

In order for multiplayer features of a game to work properly, the game needs to have uninterrupted access to the Internet and its servers in order to work properly. Windows Defender Firewall is often to blame in such cases and we recommend you make an exception for the game’s executable inside the Windows Defender Firewall!

  1. Open up Control Panel by searching for the utility in the Start button or by clicking the Search button or the Cortana button at the left part of your taskbar (bottom left part of your screen).
  2. After Control Panel opens, change the view to Large or Small icons and navigate to the bottom in order to open the Windows Defender Firewall.
Open Windows Defender Firewall in Control Panel
  1. Click on Windows Defender Firewall and click on the Allow an app or feature through Windows Firewall option from the left side list of options. A list of installed apps should open. Navigate to where you installed Conan Exile (C:\Program Files (x86)\Steam\steamapps\common by default), open the Conan Exile folder, and choose the Conan.exe file.
Allowing an app through Windows Firewall
  1. Click OK and restart your computer before checking whether the “Authentication failed” problem still persists!

Solution 4: Reinstall the Game

Reinstalling the game should be the last thing on the list but the good thing is everything is saved to your account and you won’t have to start all over again. If you have a good Internet connection or a strong PC, the game should be reinstalled in no time and the error should now cease to appear.

  1. Click on the Start menu button and open Control Panel by searching for it or by locating it in the Start menu (Windows 7 users). Alternatively, you can click on the gear icon in order to open the Settings app if you are using Windows 10 as the operating system on your computer.
  2. In the Control Panel window, switch to View as: Category at the top right corner and click on Uninstall a Program under the Programs section.
Uninstall a program in Control Panel
  1. If you are using the Settings on Windows 10, clicking on Apps section from the Settings window should open the list of all installed programs on your computer.
  2. Locate Conan Exile in the list either in Settings or Control Panel, click on it once and click the Uninstall button located in the Uninstall a program window. Confirm any dialog choices to uninstall the game, and follow the instructions which will appear on the screen.

You will need to download it again from Steam by locating in the Library and choose the Install button after right-clicking on it.


Kevin Arrows

Kevin Arrows is a highly experienced and knowledgeable technology specialist with over a decade of industry experience. He holds a Microsoft Certified Technology Specialist (MCTS) certification and has a deep passion for staying up-to-date on the latest tech developments. Kevin has written extensively on a wide range of tech-related topics, showcasing his expertise and knowledge in areas such as software development, cybersecurity, and cloud computing. His contributions to the tech field have been widely recognized and respected by his peers, and he is highly regarded for his ability to explain complex technical concepts in a clear and concise manner.