"Disconnected from server"
"Character info size error"
"Character already exists"
"...has encountered an error and must close"
The problem will be that you are not using the ClassicRO.exe client or that it isn't properly updated. Please do the following
1. Patch the normal Ragnarok Renewal Client.
2. Completely exit the Ragnarok Client
3. Goto the Ragnarok Folder and find ClassicRO.exe
4. Run ClassicRO.exe
Make sure that you run the clients as an admin (right click and select Run as Administrator)
If you have AVAST antivirus, this security program is known to have a compatibility issues with the most recent patch of the game.
Avast* real-time Behavior Shield prevents Ragexe.exe and clragexe.exe from executing cause it thinks they are a malware. Depending on your Avast ver, you can fix this problem by adding Ragexe.exe and clragexe.exe to the Trusted Process list under Behavior Shield Settings.
*Note this is for Avast Free Antivirus 7.0.