Knight Online
Knight Online error codes and fixes, OTP and account problems, ban lists and ban appeal guides.
This error means a new server requirement is missing. If it says Not Registered for pre-signup, finish pre-registration and server selection; if it says OTP is not active, finish OTP+ setup. Pre-registration stays open until November 12.
AnyOTP+ arrived on the App Store on November 4, 2026, so iPhone users no longer need TestFlight. The app is AnyOTP+ NttGame, free, and needs iOS 17 or later. The "This beta is full" message from the full 10,000-tester TestFlight beta no longer matters.
OTP+ is the new AnyOTP app NTTGame released on October 15, 2026. You sign up for free on otp.nttgame.com and install it with the OTP ID and activation code sent by SMS; it's on the Play Store, on the App Store since November 4, and has no PC version.
Common Knight Online errors with their symptom, cause and NTTGame-sourced fix on one page: won't start/DC, patching, extract failed, OTP and ICS, new servers, trade SMS verification, NPoints and account problems.
To reset the VIP storage key, log out of the game, open My Account > Game Services > Knight Online > VIP KEY on the portal and click the e-mail link. Then create a new 4-digit key in game at Inn Hostess > Use VIP Storage > lock icon.
Reset the account password with "Forgot your password?" on the nttgame.com login page: enter your ID and saved e-mail and a temporary password arrives. The security key resets under Game Services > Reset Security Key. Hotmail and Outlook may not get the e-mail.
launcher.exe downloads the patch by itself. If it won't, check for maintenance first: no updates come during maintenance. If there's none, close every Knight Online window and reopen the launcher; if that fails, reinstall the client from NTTGame's site.
Extract failed appears when the patch runs with the game open: the launcher can't overwrite the running KnightOnline.exe. Close every Knight Online window, end any KnightOnline.exe left in Task Manager and run the launcher again.
10053 is a Windows code meaning software on your PC closed the connection. If everyone is kicked, wait; if only you, turn the modem off for 5 minutes, allow the game in your firewall and try mobile data.
Largely yes: the 2629 and 2630 updates added anti-cheat features to XIGNCODE, and Knight Online no longer runs in virtual machines. According to the cheating scene, one of the most used AFK bots has been down for days.
Yes. Under NTTGame's rules dated October 21, 2026, giving another character EXP or NP for money, items or anything else is banned, and the penalty is a permanent account ban. Whoever forms the party, posts the ad or brokers it gets the same penalty.
Set up OTP (ICS) for free at otp.nttgame.com. Since October 15, 2026 the new app is OTP+; this page covers the old AnyOTP setup, activating it on the portal, changing your phone and trade SMS verification.
