Oracle Run Time Error'2147467259(80004005)' ORA-12541: TNS: no listener

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I am connecting vb6.0 application with Oracle 11Gg DB, generating an error:

Run Time Error'2147467259(80004005)' ORA-12541: TNS: no listener,

I Have Started Listener services but it still not working

VB

Private Sub Form_Load()
Dim rs As New ADODB.Recordset
Set oconn = New ADODB.Connection
oconn.Open "Provider=msdaora.1;Data Source=192.168.1.46;User Id=MaintBr_Electric;Password=sa;Persist Security Info=True"
rs.CursorType = adOpenStatic

rs.CursorLocation = adUseClient
rs.LockType = adLockOptimistic
rs.Open strSQL, oconn, , , adCmdText
Set DataGrid1.DataSource = rs

Posted 3-Jan-14 1:18am

Member 10369358

Updated 3-Jan-14 9:20am

Chris Maunder772.9K

v3

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Maciej Los · Answer 1 · 2014-01-03T14:04:00

I'm almost sure your connection string is wrong or server does not respond.

For further information, please see:
http://www.connectionstrings.com/oracle/[^]
** Troubleshooting ** 'ORA-12541: TNS:no listener' errors, for example inside Event Log[^]
ORA-12541: TNS: no listener[^]
ORA-12541_TNS_no_listener[^]
ADO connection to Oracle gets a listener error, but only on the first few attempts[^]