Oracle.ManagedDataAccess.Client.OracleException (0x80004005): ORA-12541: TNS: No listener ---> OracleInternal.Network.NetworkException (0x80004005): ORA-12541: TNS: No listener ---> System.Net.Sockets.SocketException (0x80004005): No connection could be made because the target machine actively refused it 10.33.2.156:1521
at System.Net.Sockets.Socket.InternalEndConnect(IAsyncResult asyncResult)
at System.Net.Sockets.Socket.EndConnect(IAsyncResult asyncResult)
at System.Net.Sockets.TcpClient.EndConnect(IAsyncResult asyncResult)
at OracleInternal.Network.TcpTransportAdapter.Connect(ConnectionOption conOption)
at OracleInternal.Network.OracleCommunication.DoConnect(String tnsDescriptor)
at OracleInternal.Network.OracleCommunication.Connect(String tnsDescriptor, Boolean doNAHandshake, String IName)
at OracleInternal.ServiceObjects.OracleConnectionImpl.Connect(ConnectionString cs, Boolean bOpenEndUserSession, OracleConnection connRefForCriteria, String instanceName)
at OracleInternal.ConnectionPool.PoolManager`3.Get(ConnectionString csWithDiffOrNewPwd, Boolean bGetForApp, OracleConnection connRefForCriteria, String affinityInstanceName, Boolean bForceMatch)
at OracleInternal.ConnectionPool.OraclePoolManager.Get(ConnectionString csWithNewPassword, Boolean bGetForApp, OracleConnection connRefForCriteria, String affinityInstanceName, Boolean bForceMatch)
at OracleInternal.ConnectionPool.OracleConnectionDispenser`3.Get(ConnectionString cs, PM conPM, ConnectionString pmCS, SecureString securedPassword, SecureString securedProxyPassword, OracleConnection connRefForCriteria)
at Oracle.ManagedDataAccess.Client.OracleConnection.Open()
at CoreViewer.Fill_WellInfo()
at CoreViewer.Page_Load(Object sender, EventArgs e)
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