Outdated GPU drivers – As it turns out, an outdated or partially corrupted dedicated GPU driver can also trigger this particular error code.Several affected users have reported that they’ve been able to resolve this particular issue by reinstalling the Synapse utility. Conflict with the Razer Synapse utility – On Windows 10, you can expect to see this issue popping up when you attempt to launch the game due to a conflict with certain Razer peripherals hosted inside the Synapse utility.As it turns out, the newer version of NC launcher is known to conflict with certain peripheral drivers while the SDK service is disabled. The Razer Chroma SDK Service is Disabled – If you’re using Razer peripherals, you should take the time to investigate the current status of the Razer Chroma SDK service and enable it if it’s currently disabled.In this case, you can resolve the issue by replacing the GameGuard version or by uninstalling the current game version and installing the latest build (along with the latest GameGuard version). Deprecated GameGuard version – As it turns out, you can also expect to encounter the 4049 error code due to a deprecated version of the anti-cheat engine that the game no longer accepts.Outdated NCSOFT launcher version – Because the developers of NCSOFT have recently deprecated the functionality of the old launcher, you’ll need to migrate to the new launcher before you’ll be able to launch the game without this error again.If this is the main cause of the issue, you should be able to resolve the issue by using Task Manager to close the remnant processes that are still open before re-launching the game. Game processes are stuck in a limbo state – There are several BnS game processes (BnSCefSubProcess.exe, GameMon.Des, Client.exe) that have a tendency to become stuck in a limbo state.

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