EAC Issues all of a sudden

Went to log into the game just now and got a few EAC errors/issues.

  1. nvwgf2umx.dll I think a video driver thing

  2. steamclient64.dll

  3. error signing certificates

what the hell is going on? I have something like 1k hours in the game was playing 12 hours ago no problem now I can’t launch the game

Hello @GreasyGinzo,

Thank you for taking the time to reach out to us, I’m so sorry to hear that you’re having issues with your EAC.

I recommend you to try the following troubleshooting to repair any issue related to EAC that may be causing this.

To repair Easy Anti-Cheat:

  1. Open the Lost Ark Application in your Steam library.
  2. Open Settings, select Manage, and then Browse Local Files.
  3. Open the EasyAntiCheat folder.
  4. Launch the EasyAntiCheat_Setup.exe file as administrator, and run it.
  5. Select Repair.

Additional EAC troubleshooting:

  • Verify: To verify your EAC installation, check out EAC Support.
  • Update: To update your EAC installation, check out EAC Support.
  • Reinstall: To install or uninstall EAC, follow the steps here: EAC Support.
  • For all other EAC troubleshooting information, or to contact EAC, check out EAC Support.

For any additional information regarding EAC problems, check this link:

Hope this helps! :mage:


This problem still persists for many people I know, even with every fix that people have came up with, is this issue actually being worked on internally?

It would be nice for there to be some communication on this other than offering the same response, I can only imagine the people affected by this are reluctant to play much if they are just going to get DCed on raid encounters/MVP screens, thanks in advance.