Help--- x++ connect to remote SQL server

hi , I am using AX 2012, with Connection class, I can direct call SQL stored procedure. 

wondering, the connection class able to connect to remote sql server? say I have sql server S1 and S2, S1 is current AX db, so, if I call the stored procedure that in same server but different database , I can use statement below to get result 

ConnectionsqlConn = new Connection();

Statementsqlstatement = sqlConn.createStatement();

SqlStatementExecutePermission perm;

Resultsetrs;

StringsqlString;

sqlstring =strfmt("execute [dbname].[dbo].[mySPname]");

perm = new SqlStatementExecutePermission(sqlString);

perm.assert();

rs = sqlstatement.executequery(sqlstring);

while (rs.next())

{

(loop result set)......

}

but if I want to call S2 server stored procedure and added in the server name in the sqlstring statement, will get error, 

sqlstring = strfmt("execute [S2].[dbname2].[dbo].[myspname2]" );

"A server cursor cannot be opened on the given statement or statements, Use a default result set or client cursor."

Is above statement incorrect? 

note: the above class Runon server, and I would prefer use Connection class instead of ODBC.

thanks you.