OO4O - Unable to make connection, ORA - 12170: TNS: Connect timeout occured

Hi,
I am trying to connect to the Database server from Vista client using code written in VB 6.0, The oracle client installed in Vista is 10.2g
I am using the below code to connect to the oracle database. I tried increasing the INBOUND_CONNECT_TIMEOUT parameter in the SQLNet.ora file, but didn't work.
Set gvobjOraSession = CreateObject(gvOraSession)
Set gvobjOraDatabase = gvobjOraSession.OpenDatabase(gvOraDBName, gvOraDefaultUser & "/" & gvOraDefaultPassword, vOraMode)
Thanks for the help in advance
Anand

Are you able to connect using the same information with sqlplus from the same client machine? 12170 is usually a basic client config issue rather than something specific to OO4O.
Greg

Similar Messages

Handling the ORA-12170: TNS:Connect timeout in a procedure

Post moved to:
Handling the ORA-12170: TNS:Connect timeout in a procedure
Edited by: John_75 on Jun 28, 2010 9:33 AM

http://download.oracle.com/docs/cd/B19306_01/network.102/b14212/troublestng.htm#i440403
will give you
http://download.oracle.com/docs/cd/B19306_01/network.102/b14212/troublestng.htm#CEGEDBIE

ORA-12170:TNS:Connect timeout occurred

Hi, I am no longer able to log into SQL Plus. I get the error message above. I think the problem comes from my comtputer being renamed. Can someone help me?
Thanks.

ORA-12170:TNS:Connect timeout occurred
Cause: The server shut down because connection establishment or communication with a client failed to complete within the allotted time interval. This may be a result of network or system delays; or this may indicate that a malicious client is trying to cause a Denial of Service attack on the server.
Action: If the error occurred because of a slow network or system, reconfigure one or all of the parameters SQLNET.INBOUND_CONNECT_TIMEOUT, SQLNET.SEND_TIMEOUT, SQLNET.RECV_TIMEOUT in sqlnet.ora to larger values. If a malicious client is suspected, use the address in sqlnet.log to identify the source and restrict access. Note that logged addresses may not be reliable as they can be forged (e.g. in TCP/IP).
1. Check whether database is up and running.
2. tnsping <databasename> and see whether you are able to ping the database in command prompt.
3. Check tnsnames are configured properly.
4. check DNS entry in your host file.
Regards,
Syed

Logging in Oeacle SQL*Plus (ORA-12170: TNS: Connect timeout occured) ...

I installed recently Oracle 10g. When I try to log in, with the account and password setup[ earlier, I get the message "ORA-12170: TNS: Connect timeout occured". Do I need to specify a Host String" at Log On? Should I un-install and re-install the software again? Thank you.

/* Error:     ORA-12170 (ORA-12170)
Text:     TNS:Connect timeout occurred
Cause:     The server shut down because connection establishment with a
     client failed to complete within the allotted time interval. This
     may be a result of network/system delays; or this may indicate
     that a malicious client is trying to cause a Denial of Service
     attack on the server.
Action:     If the error occurred because of a slow network/system,
     reconfigure the SQLNET.INBOUND_CONNECT_TIMEOUT parameter in
     sqlnet.ora to a larger value. If a malicious client is suspected,
     use the address in sqlnet.log to identify the source and restrict
     access. Note that logged addresses may not be reliable as they can
     be forged (e.g. in TCP/IP).
Could also be a firewall issue.
Werner

ORA-12170:TNS connect timeout occured.

HI, i am getting this error when trying to connect, sqlplus, form builder in devsuite.10.1.0
can anyone help, plz........................
ORA-12170:TNS connect timeout occured.
with regards,
AJAZ.

In $ORAHOME/network/admin on the machine where you have Forms Builder installed, there is a file called tnsnames.ora
This file maps the 'tns name' which you are probably using in your connect string, to a specific TCP/IP port (and 'service identifier') on the database host.
A TNS connect timeout could occur because:
a) a firewall is preventing communcation between your machine and the database host/port in your tns definition
b) the TNS 'listener' on the database host at that port is hung
For my money, I'd be investigating (a) first.
It's worth investing time in learning about TNS. It will save you a lot of hassle.
regards,
David.
(Please mark this post as 'helpful' if it put you on the right track ... thanks!).

How to solve this error :12170 TNS connection to timeout occured- req

Hi
I have 2 databases.They are source db and target db .i have created the database link source to target.The users report that when they try to connect the database source from target database using the database link they are getting the error
ORA-12170: TNS: CONNECTION TO TIMEOUT OCCURED
Note : Indpendently can be log on source database, target database from out of source db, But source db could'nt directly logon.
so how can i solve the error
pls reply urgently....
regs
RENGA

ORA-12170: TNS: CONNECTION TO TIMEOUT OCCUREDWhen was last time this worked?
What changed?
What OS name & version involved on each system?
12170, 00000, "TNS:Connect timeout occurred"
// *Cause: The server shut down because connection establishment or
// communication with a client failed to complete within the allotted time
// interval. This may be a result of network or system delays; or this may
// indicate that a malicious client is trying to cause a Denial of Service
// attack on the server.
// *Action: If the error occurred because of a slow network or system,
// reconfigure one or all of the parameters SQLNET.INBOUND_CONNECT_TIMEOUT,
// SQLNET.SEND_TIMEOUT, SQLNET.RECV_TIMEOUT in sqlnet.ora to larger values.
// If a malicious client is suspected, use the address in sqlnet.log to
// identify the source and restrict access. Note that logged addresses may
// not be reliable as they can be forged (e.g. in TCP/IP).Edited by: sb92075 on Oct 20, 2010 6:53 AM

ORA-12537 TNS Connection closed after OAS 4.0.8.1 Installation

finally I was able to install and start OAS
on RH 6.1, but now I can not start Ora8i (with all patches) on my system. When I start svrmgrl, will get ora-12537 TNS Connection lost error.
Can someone please help!
Thanks

They said in the install doc that you can't use the same ORACLE_HOME for 8i and OAS 4.0.8...

ORA-12564: TNS:connection refused

C# code:
private Oracle.DataAccess.Client.OracleConnection objConn;
objConn.ConnectionString = "User Id=tst;Data Source=CZETEST;Password=1234;"
objConn.Open();
tnsnames.ora
CZETEST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = XXX.NET)(PORT = 1621))
(CONNECT_DATA =
(SERVICE_NAME = XXX.CZ)
I'm trying to connect to an Oracle 10g server.
objConn.Open(); always ends with "ORA-12564: TNS:connection refused"
I've even tried to let the connection build by ODT connection wizzard ('Test connection' button displays 'Connection was successfull', but when the code is run the result is unfortunately the same :(
Anybody knows where the problem should be?

This is often a malformed tnsnames.ora. Is what you posted a snippet, because it looks to me that you a closing ) too many. You can turn on tracing which should help you find the problem. It's odd that odt says the connection works, though.

Ora 12170 tns delai

dear all ,
I have a problem connecting my client to a the ORCL database on a small lan in my lab, first i get a timeout ORA-12170, after that i figured out that i am using a firewall , so i deactivated it , so it works fine.
my question is how could i keep my firewall on and achieve the connection, since i am working in a TCP/IP environment using windows OS:
-which port do i have to open?
-if the port changes dynamically how could i deal with that ?
thanks in advance.

for 1st point
- Open "Net Manager" --> Local --> Listener --> Select the listener_name
then "Add Address" with different ports.
after adding address your listener.ora will start showing like that
LISTENER =
(DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = host_IP)(PORT = 1521))
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = host_IP)(PORT = 1522))
)- Then Stop & Stop the listener using lsnrctl.
for 3rd point
you have to define new variable USE_SHARED_SOCKET = True in
My computer property --> Advance --> Environment Variables --> system variables
Regards
Singh

Ora - 12537 tns connection closed

hai folks,
when i am connecting to database from toad software it throwhn error like this.
in which files i will update regarding tnsnames.ora file.
Regards
dba

You need to register the hosts which you want to give SQL*Plus/TOAD access as nodes.
From OAM, navigate to Site Map > Administration > System Configuration > Hosts > Register.
You may also comment "tcp.validnode_checking = yes" but this will allow any client to be able to connect to the Database.
For more details, please refer to Note: 291897.1 - 11.5.10 New Features : Managed SQL*Net Access from Hosts
https://metalink.oracle.com/metalink/plsql/ml2_documents.showDocument?p_database_id=NOT&p_id=291897.1

Unable to connect SQL State=S1000 [Oracle][ODBC][Ora]ORA-12170:

Hi all,
I have an Windows XP OS with SP3.
I have installed the Oracle 11g server.
On trying to connect to the ODBC connection, i get the following error message:
Unable to connect SQL State=S1000 [Oracle][ODBC][Ora]ORA-12170: TNS: Connect timeout occured
On trying the tnsping,
TNS Ping Utility for 32-bit Windows: Version 11.1.0.6.0 - Production on 09-OCT-2
011 13:11:05
Copyright (c) 1997, 2007, Oracle. All rights reserved.
Used parameter files:
E:\app\Gautam\product\11.1.0\db_1\network\admin\sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.
5.207)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = orcl))
TNS-12535: TNS:operation timed out
On trying to connect with SQL Developer, i get the following error:
Status: Failure - Test failed: Io Exception: The Network Adapter could not establish the connection
However i am able to connect to the same using SQL Plus
Another issue that occurs is that the Oracle Enterprise Manager shows the following error after a while:
Agent Connection to Instance
Status Failed
Details ORA-12505: TNS:listener does not currently know of SID given in connect descriptor (DBD ERROR: OCIServerAttach)
The following services are all up during this point of time:
OracleDBConsoleorcl
OracleOraDb11g_home1TNSListener
OracleServiceORCL
Any help in this regard will be very useful as this is hindering the progress of my work.
Thanks in advance for the help.
- Gautam

841683 wrote:
Hi,
I did try and delete my listener.ora and then create a new one..
That did not solve my issue..
What are the steps for configuring the listener again.
Thanks for the response..
- Gautamno listener.ora file is required.
just do as below
lsnrctl start

ORA-12170 and TNS-12535

Hi everyone
My servers are in a separate location and we are accessing our databases from my office.
The developers say that they couldn't access one particular db from their machine.
The errors they receive when they try to connect using some tool is:
TNS-12535 TNS:operation timed outWhen I request them to TNSPing or when they access from Sql Plus(instant client), this is the error they receive:
ORA-12170: TNS:Connect timeout occurredOne of the developers are using Oracle XE and he too faces the same scenario.
So, where should I trace this problem from.
We all could ping to the machine where the Oracle resides.
Please advice.
Thanks in advance.

I have done a trace on the client side and here is the output:
--- TRACE CONFIGURATION INFORMATION FOLLOWS ---
New trace stream is C:\temp\sqlnettrace_3860_1.trc
New trace level is 16
--- TRACE CONFIGURATION INFORMATION ENDS ---
--- PARAMETER SOURCE INFORMATION FOLLOWS ---
Attempted load of system pfile source C:\oraclexe\app\oracle\product\10.2.0\server\network\admin\sqlnet.ora
Parameter source loaded successfully
Attempted load of local pfile source C:\Program Files\Gyrasoft\SQL Samurai For Oracle\sqlnet.ora
Parameter source was not loaded
-> PARAMETER TABLE LOAD RESULTS FOLLOW <-
Successful parameter table load
-> PARAMETER TABLE HAS THE FOLLOWING CONTENTS <-
   TRACE_UNIQUE_CLIENT = ON
   TRACE_DIRECTORY_CLIENT = C:\temp
   SQLNET.AUTHENTICATION_SERVICES = (NTS)
   TRACE_TIMESTAMP_CLIENT = ON
   TRACE_LEVEL_CLIENT = 16
   TRACE_FILE_CLIENT = SQLNetTrace
--- PARAMETER SOURCE INFORMATION ENDS ---
--- LOG CONFIGURATION INFORMATION FOLLOWS ---
Log stream will be "C:\Program Files\Gyrasoft\SQL Samurai For Oracle\sqlnet.log"
Log stream validation not requested
--- LOG CONFIGURATION INFORMATION ENDS ---
nlstdipi: entry
nlstdipi: exit
nigini: entry
nigini: Count in the NL global area is now 1
nigini: Count in NI global area now: 1
nrigbi: entry
nrigbni: entry
nrigbni: Unable to get data from navigation file tnsnav.ora
nrigbni: exit
nrigbi: exit
nigini: exit
niqname: Hst is already an NVstring.
niqname: Inserting CID.
niotns: entry
snsbitini_ts: entry
snsbitini_ts: normal exit
snsbitini_ts: entry
snsbitini_ts: normal exit
niotns: Not trying to enable dead connection detection.
niotns: Calling address: (DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=xxx.xxx.x.xx)(PORT=1521)))(CONNECT_DATA=
(SERVER=DEDICATED)(SERVICE_NAME=test)(CID=(PROGRAM=C:\Program Files\Gyrasoft\SQL Samurai For Oracle\SQLSamuraiForOracle.exe)(HOST=Machine1)(USER=11111))))
nscall: entry
nsmal: entry
nsmal: 212 bytes at 0x98e50b0
nsmal: normal exit
nscall: connecting...
nladini: entry
nladini: exit
nladget: entry
nladget: exit
nsc2addr: entry
nsc2addr: (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=xxx.xxx.x.xx)(PORT=1521))(CONNECT_DATA=(SERVER=DEDICATED)
(SERVICE_NAME=test)(CID=(PROGRAM=C:\Program Files\Gyrasoft\SQL Samurai For Oracle\SQLSamuraiForOracle.exe)(HOST=Machine1)(USER=11111))))
nttbnd2addr: entry
snlinGetAddrInfo: entry
snlinGetAddrInfo: exit
nttbnd2addr: using host IP address: xxx.xxx.x.xx
snlinFreeAddrInfo: entry
snlinFreeAddrInfo: exit
nttbnd2addr: exit
nsc2addr: normal exit
nsopen: entry
nsmal: entry
nsmal: 736 bytes at 0x98e6380
nsmal: normal exit
nsopenmplx: entry
nsmal: entry
nsmal: 1644 bytes at 0x98e7fc0
nsmal: normal exit
snsbitini_ts: entry
snsbitini_ts: normal exit
nsiorini: entry
nsbal: entry
nsbgetfl: entry
nsbgetfl: normal exit
nsmal: entry
nsmal: 84 bytes at 0x98e5218
nsmal: normal exit
nsbal: normal exit
nsiorini: exit (0)
nscpxget: entry
snsbitts_ts: entry
snsbitts_ts: acquired the bit
snsbitts_ts: normal exit
snsbitcl_ts: entry
snsbitcl_ts: normal exit
nscpxget: normal exit
nsopenalloc_nsntx: nlhthput on mplx_ht_nsgbu:ctx=98e6380, nsntx=98e7fc0
nsopenmplx: normal exit
nsopen: opening transport...
nttcon: entry
nttcon: toc = 1
nttcnp: entry
nttcnp: creating a socket.
nttcnp: exit
nttcni: entry
nttcni: trying to connect to socket 900.
ntt2err: entry
ntt2err: soc 900 error - operation=1, ntresnt[0]=505, ntresnt[1]=60, ntresnt[2]=0
ntt2err: exit
nttcni: exit
nttcon: exit
nserror: entry
nserror: nsres: id=0, op=65, ns=12535, ns2=12560; nt[0]=505, nt[1]=60, nt[2]=0; ora[0]=0, ora[1]=0, ora[2]=0
nsopen: unable to open transport
snsbitts_ts: entry
snsbitts_ts: acquired the bit
snsbitts_ts: normal exit
snsbitcl_ts: entry
snsbitcl_ts: normal exit
nsiocancel: entry
nsiofrrg: entry
nsbfr: entry
nsbaddfl: entry
nsbaddfl: normal exit
nsbfr: normal exit
nsiofrrg: exit
nsiocancel: exit
nsopenfree_nsntx: nlhthdel from mplx_ht_nsgbu, ctx=98e6380 nsntx=98e7fc0
nsiocancel: entry
nsiofrrg: entry
nsiofrrg: exit
nsiocancel: exit
snsbittrm_ts: entry
snsbittrm_ts: normal exit
snsbitts_ts: entry
snsbitts_ts: acquired the bit
snsbitts_ts: normal exit
snsbitcl_ts: entry
snsbitcl_ts: normal exit
nsmfr: entry
nsmfr: 1644 bytes at 0x98e7fc0
nsmfr: normal exit
nsmfr: entry
nsmfr: 736 bytes at 0x98e6380
nsmfr: normal exit
nsopen: error exit
nsclose: entry
nsclose: normal exit
nladget: entry
nladget: exit
nsmfr: entry
nsmfr: 212 bytes at 0x98e50b0
nsmfr: normal exit
nladtrm: entry
nladtrm: exit
nscall: error exit
nioqper: error from nscall
nioqper:    ns main err code: 12535
nioqper:    ns (2) err code: 12560
nioqper:    nt main err code: 505
nioqper:    nt (2) err code: 60
nioqper:    nt OS   err code: 0
niomapnserror: entry
niqme: entry
niqme: reporting NS-12535 error as ORA-12535
niqme: exit
niomapnserror: exit
niotns: Couldn't connect, returning 12170
nioqer: entry
nioqer: incoming err = 12170
nioqce: entryCould someone please throw some light on this?

I see the error: ORA-12170 when I make Net Manager on Oracle DTB Client

Dear all,
I installed Oracle Database 10 g on Server, then I installed Oracle Database Client 10 g on another PC. I tested the connection database from client PC by making Net Manager on Oracle Database Client. And I see the error ORA - 12170.
Can you help me?
I want to connect database on Server to practice add Portlet by SQL/PLUS.
Thanks.

Oracle says...
ORA-12170: TNS:Connect timeout occurred
Cause: The server shut down because connection establishment or communication with a client failed to complete within the allotted time interval. This may be a result of network or system delays; or this may indicate that a malicious client is trying to cause a Denial of Service attack on the server.
Action: If the error occurred because of a slow network or system, reconfigure one or all of the parameters SQLNET.INBOUND_CONNECT_TIMEOUT, SQLNET.SEND_TIMEOUT, SQLNET.RECV_TIMEOUT in sqlnet.ora to larger values. If a malicious client is suspected, use the address in sqlnet.log to identify the source and restrict access. Note that logged addresses may not be reliable as they can be forged (e.g. in TCP/IP).
Also check the following...
1) Listener status on the server.
2) Check listener.log file present in X:\oracle\product\10.2.0\db_1\NETWORK\log folder to grab any error.
3) Check the result of tnsping from the client.
4) try to login by sqlplus username/password@tnsname and see what happens.

TNS:connection timeout error

Hi,
I have installed oracle 10g in my system.
the tnsnames.ora file contails the following:
TEST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.2)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = test)
and sqlnet.ora file contains :
SQLNET.AUTHENTICATION_SERVICES= (NTS)
NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT)
when i'm trying to login from SQLPLUS as:
sqlplus sys/<password>@<sid> as sysdba
it's showing the error as "ORA-12170 :TNS: connect timeout occured"
C:\Documents and Settings\Administrator>sqlplus sys/<password>@<sid> as sysdba
SQL*Plus: Release 10.2.0.1.0 - Production on Wed Sep 10 09:47:56 2008
Copyright (c) 1982, 2005, Oracle. All rights reserved.
ERROR:
ORA-12170: TNS:Connect timeout occurred
Enter user-name: sys as sysdba
Enter password:
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, OLAP and Data Mining options
SQL>
But i coudnot connect to Enterprise manager and through Toad because it tells as "TNS:connect timeout occured".
From enterprise manager it shows the instance,listener are down.
trying to start up the instance shows as "not connected to oracle".
Could you please help me for this.
Thanks,
Souvik

user10223265 wrote:
This may help
http://www.errorkey.com/search/Index.aspx?q=TNS-12541
Is this the best you have to offer? I see you keep on posting "+answers+" using this URL. Well, if this is all you have to offer it is pretty pathetic. Please do not bother as there are many here that will actually make an effort to assist the person with the problem. We do not want you to sprain a finger or break a nail looking up the errorkey URL for yet another error code.
Re: why handling ora-01722 with pl/sql not works ???

Ora-2049 vs ora-12170

We have a 3 node RAC on AIX and have several dbms_jobs running that read and write to a single remote database. Occasionally, but not often, we encounter ORA-2049 timeout: distributed transaction waiting for lock with only one of the jobs. It's the same job/package each time the error occurs.
To troubleshoot, we migrated this environment to a 2 node RAC (less capable hardware) and now we are getting ORA-12170 TNS:Connect timeout occured on several of the jobs. The error is frequent at times and infrequent to non-existent at other times. ORA-2049 is extremely infrequent as compared to the ORA-12170 error.
All DBs are running 10gR2.
The DBA says this is a result of the use of db links and synonyms but my first thought is that these seem to be two different errors. We use a mixture of both public and private db links as well as public and private synonyms to access the remote database. The jobs also use dynamic SQL to execute DML and in some cases triggers to access the remote db. Is our use of links/synonyms/triggers the source of the problem or is there another configuration issue we should be looking at?
Does anyone know of a good reference for the use of synonyms, db links, and triggers with respect to do's and don'ts?
Any insight is greatly appreciated.
Thanks!
Edited by: user10394376 on Feb 23, 2010 12:12 PM

Yup, simplified as in changed. But still exactly the same tables and columns, just realised I was doing an unnecessary join. When I changed the predicates it worked.

OO4O - Unable to make connection, ORA - 12170: TNS: Connect timeout occured

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