1) Creating an MSSQL Database ( MuOnline2 ) And fill in the server database.
2) In the folder with the server, create Any folder I created (Sub )
3) Copy the folder there (Data, DataServer, GameServer )

Main Server
ConnectServer ( ServerList )

//ServerCode ServerName ServerAddress ServerPort ServerType
0 "GameServer" "IP" 55901 "SHOW"
5 "GameServer" "IP Sub" 55902 "SHOW"
19 "GameServerCS" "IP CS" 55919 "HIDE"
end

MapServerInfo

0
//ServerCode MapServerGroup InitSetVal IpAddress Port

0 0 1 S IP 55901
5 1 1 S IP Sub 55902
19 0 0 S IP CS 55919
end

1
//ServerCode NotMoveOption NextMap NextServerCode
0 0 30 19
0 0 31 19
0 0 34 19
0 0 41 19
0 0 42 19
0 0 79 19
5 0 30 19
5 0 31 19
5 0 34 19
5 0 41 19
5 0 42 19
5 0 79 19
19 1 30 -1
19 1 31 -1
19 1 34 -1
19 1 41 -1
19 1 42 -1
19 1 79 -1
end

Sub Server:

MapServerInfo

0
//ServerCode MapServerGroup InitSetVal IpAddress Port
5 1 1 S IP Sub 55902
19 0 0 S IP CS 55919
end

1
//ServerCode NotMoveOption NextMap NextServerCode
5 0 30 19
5 0 31 19
5 0 34 19
5 0 41 19
5 0 42 19
5 0 79 19
19 1 30 -1
19 1 31 -1
19 1 34 -1
19 1 41 -1
19 1 42 -1
19 1 79 -1
end

DataServer

[DataServerInfo]
DataServerODBC = MuOnline2
DataServerPort = (Stock 55960 ( WE SPECIFY FOR EXAMPLE 55965 !!! )

GameServerInfo - Common

ServerPort = 55902

Look below, the line responsible for Data
DataServerPort = (Stock 55960 ( WE SPECIFY FOR EXAMPLE 55965 !!! )

It turns out that you are running a sub server with its own Database !
Basis: MuOnline ( Well, for example, make x1000
Sub: MuOnline2 ( For example x500 )
The bases are different, the accounts are different !

He suffered for a couple of days. Here I decided myself.
Thank you all ! Maybe I helped someone, given by the guide )))))

check this guide my friend, is the same what do you need:

https://tuservermu.com.ve/index.php?topic=2764.0

Sorry, I didn't see your guide. and I guessed it myself before that.