i think you need to test this connection string format, might be it will solve your problem..
<add name="CONNECTIONSTRINGNAME" connectionstring="Data Source=(DESCRIPTION=(ADDRESS_LIST=(FAILOVER=yes)(LOAD_BALANCE=yes)(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.3.244)(PORT=1521))(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.3.244)(PORT=1521))(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.3.244)(PORT=1521))(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.3.244)(PORT=1521)))(CONNECT_DATA=(SERVICE_NAME=YOURORACLESERVICENAMEHERE)));User Id=system;Password=Softweb#123;" providername="System.Data.OracleClient" />