Welcome to our Lost Ark Authentication Error 10010 guide. A guide on how to fix authentication failed error 10010 in Lost Ark.
Lost Ark Authentication Error 10010
This guide might provide some help for those who struggle with the Authentication Failed 10010 Error.
Summary of Potential Fixes
- A quick summary of possible methods to fix the Authentication Failed Error 10010 issue:
- Verify Integrity of Game Files on Steam
- Disable Internet Protocol Version 6
- Refresh Game Credentials
- Re-link your Twitch & Steam Accounts
- Mobile Internet & VPN
- Disabling your Antivirus Program Temporarily
Disclaimer: I am, the author of this guide, not responsible for any problems that might suddenly appear after you tried any of those suggested methods!
Verify Integrity of Game Files on Steam
The easiest thing you can do is verifying the game files via Steam.
- Open Steam
- Go to the Library
- Select Lost Ark
- Right click and go to Properties
- Select Local Files
- Click Verify the integrity of game files
- Let the process go through – this might take a couple of minutes
- Launch the game & see if it worked
Re-link your Twitch & Steam Accounts – Lost Ark Authentication Error 10010
This option is only availabe for those who have a Twitch & Amazon account
- Go to Amazon Games
- Unlink your Steam account
- Go to Lost Ark Twitch Drops
- Unlink your Steam account
- Re-Link your accounts again on each website
- Restart Steam
- Launch the game & see if it worked
Disabling your Antivirus Program Temporarily
This option is only availabe if you have a 3rd party Antivirus Program installed & running
- A solution that sounds pretty weird and suspicious is temporarily disabeling your Antivirus Program right before you launch Lost Ark via Steam.
- Deactivate your Antivirus Program
- Launch Lost Ark
- Let it load until you’re able to choose a server
- Start your Antivirus Program again
Disable Internet Protocol Version 6
- Press Windows Key + R
- Type ncpa.cpl in the searchbar
- Right click on Network
- Go to Properties
- Uncheck Internet Protocol Version 6
- Save changes
- Launch the game & see if it worked
Refresh Game Credentials
- Open Windows Search and type cmd
- Run the command prompt as administrator
- Type ipconfig /flushdns & press enter
- Type ipconfig /registerdns & press enter
- Type ipconfig /release & press enter
- Type ipconfig /renew & press enter
- Type netsh winsock reset & press enter
- Restart your computer
- Launch the game & see if it worked
Wait inbetween each command for a few seconds
Mobile Internet & VPN – Lost Ark Authentication Error 10010
This option is only availabe if you have a VPN or can setup a mobile hotspot
Some people claim that using Mobile Internet or a VPN solved the problem.
Which Method Helped us Personally?
We tried almost all the suggestions I mentioned in this guide and disabling my Antivirus before starting the game fixed the 10010 Authentication Failed Error.
After all, this may be a specific Kaspersky issue and we can assist you. All we can do is share what we’ve gathered from forum posts and official responses from the developers and put them together in this guide. . We hope we can assist you.
