Check out the patch notes for the February 18th update:
[NEW MILLETIANS] Please note that all new forum users have to be approved before posting. This process can take up to 24 hours, and we appreciate your patience.
If this is your first visit, be sure to check out the Nexon Forums Code of Conduct. You have to register before you can post, so you can log in or create a forum name above to proceed. Thank you for your visit!

Nexon Launcher patch failed

Mabinogi Rep: 400
Posts: 11
in Technical Support
Nexon launcher won't launch, it says patch failure. Tried uninstalling launcher and re-installing it and same response. What should be done to fix this. Using windows 10.