I've been playing ragnarok for days until this happened. I've been trying to fix it for 5 hours.
After logging in 10000 times and keep getting this message, I finally went to google and did these:
I reinstalled RO several times
I already copied a different ragnarok file from my sister's computer to mine
Turned my firewall on and off
Did the ftp/update server thing on Internet Explorer
Did telnet and command prompt
"Pinged"
Run stuff as administrator
And I know I did more, but for now that's all I can remember.
I download my Ragnarok throught Steam, btw. If that helps..
And how it happened btw, was..
I was playing iRO, I went to Kafra and used her to teleport from Payon to Alberta. I got stuck to the loading message, so I just pressed exit. So I went back and started ragnarok again. I logged in again then I got this message. I tried loggin in several times. Sometimes it happens after character select, sometimes it just pops up after logging in.
I'm so frustrated and confuse right now. It was working fine for more than 5 days :/