Been having the same problem trying to login to Ragnarok on the NA/EU datacenter side.
Trying to login and only getting the error 10102 "Connection with the server was lost" message.

So far I haven't seen any announcements or posts from SE about any kind of fixes or about anything that's being done. Sometimes when I've gotten into the lobby I get a message that the JP datacenters cannot be loaded. No problem there, I only want my character(s) on the NA/EU side.
However, I've also seen errors 2002 and 5006 pop up which disconnect me from the lobby server.

If this continues, I may end up joining the crowd of folks that never log out, which will only further exacerbate the problem.