[Update] This issue has been resolved with 3/2 Unscheduled Maintenance. 

 Hi Maplers,

We are aware of the disconnect issue affecting Steam and Nexon Launcher players that is occurring after selecting a region in the region selection screen. We are currently investigating this issue and will provide updates as soon as we can.

We apologize for any inconvenience this is causing. Thanks for your patience.

-The MapleStory Team