Random TNS-12545 errors

Most of the time my customers sqlnet connections work just fine. Every day or so they get TNS-12545 errors between their servers and databases and across database links for about a minute or two and then things go back to normal. The errors occurr at random times.
We are looking at network and server things that might cause a slow response.
This is Oracle 10.
Are there any specific oracle net parameters that would provide a workaround to avoid this problem?

Most of the time everything is okay but once or twice per week an error occurs and the user gets TNS-12545 errors.
This is Oracle 10. I can't post the configuration files.
I think I need something in the OracleNet configuration that would cause OracleNet to wait a little longer on the connection.

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    I have installed Oracle 8.1.7 on RH9 following Arothmel at www3.sympatico.ca/arothmel
    with success. The database is created, and oracle can be lunch without problem but "lsnrctl start" give errors:
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    (c) Copyright 1998 Oracle Corporation. All rights reserved.
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    Linux Error: 2: No such file or directory
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    (c) Copyright 1998 Oracle Corporation. All rights reserved.
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    [oracle@padbd oracle]$ lsnrctl status listene
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    Regards,
    Martin

  • Error starting listener on one node in RAC:Error listening on....TNS-12545:

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    See link
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  • TNS-12545: Connect failed because target host or object does not exist

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  • Re:ORA-12545 error (host target)

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  • Oracle 10gr2 rac, ora-12545 error when configured in shared server mode

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    ~ Madrid
    http://hrivera99.blogspot.com

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  • TNS- 12545: no listener

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    Uptime                    0 days 0 hr. 0 min. 0 sec
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    SNMP                      OFF
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    Copyright (c) 1991, 2005, Oracle.  All rights reserved.
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    $                                                                                          

  • TNS-12518 error while trying to fetch data from SQL Server

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    Copyright (c) 1991, 2005, Oracle. All rights reserved.
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    "DEDICATED" established:5 refused:0
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    "DEDICATED" established:4234 refused:0 state:ready
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    Service "STD81_XPT" has 1 instance(s).
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  • ORA-12560-TNS PROTOCOL ERROR

    SIR,
    i hadbeen installed oracle aplication server.but i m not connecting to database.when i use the sql*plus.i use the user name-scott &password-tiger.i got an error ORA-12560=TNS PROTOCOL ERROR.
    I M NOT ABLE TO RECTIFY ITS PROBLEM,how can i create host string in oracle application server 10g.please send reply its very urgent.
    thanx ranjeet

    Although this question is completely off topic of the Personalization you can learn how to configure the SQL*Net connect from the manual by reading the topic "Configure the Client to Use a Net Service Name" found at the following link:
    http://download-west.oracle.com/docs/cd/A91202_01/901_doc/network.901/a90154/gettings.htm#483215

  • Error: ORA-12560 TNS : Protocol Error help need urgently

    HI
    i m working on win 2k adv server
    i installed orcale 8i
    and then i started sql plus
    and entered us id and pass : scott / tiger
    and also tried :system / manager
    but i m having this error
    plz tellme how can i solve it
    Error: ORA-12560 TNS : Protocol Error
    plz do it soon
    Nurali
    03002199037

    You're attempting to go across SQL*Net. I'm a unix guy so I can't help very much except to point this out.
    On Unix I'd either undefine the TWO_TASK environmental variable. Probably a reg entry on 2k.
    Or configure Sql*Net.
    Ken

  • MARS - Oracle TNS listener errors

    Anyone familiar with this:
    [pnadmin]$ pndbusage
    Program aborted due to: ORA-12541: TNS:no listener
    MARS was fine before the holiday weekend. When I came back, I was looking at the summary page and the graph wasn't being drawn. I SSH'd to MARS and did the above.
    While SSH'd to MARS (and my HTTPS session still open) I did a reboot and I still get the same error. Also, now when I HTTPS to MARS I get a login page, but the url is: https://10.6.184.116/logout.jsp
    The username/password fields and login button are in the upper left corner of the browser window, not in the middle like normal.
    So, now I have two problems. The first being my TNS listener error and the second being that I can't log in. It wants me to log out first...ugh.
    Thanks,
    Bob

    This sounds like a known issue and if memory serves a developer will need to login and do something, so you'll need to open a TAC case.
    Here is the link:
    http://www.cisco.com/en/US/products/ps6241/products_field_notice09186a008070fcaf.shtml

  • Unable to connect to TOAD : ora:-12546 TNS Permission error

    Hi friends
    Kindly help me
    Am Unable to connect to TOAD : ora:-12546 TNS Permission error
    till 2 days before it was connecting.
    Dont know what happened now
    SQL*Plus and Forms 6i are getting connected.
    What can be the issue ?
    Regards
    Dora

    Hi
    ORA-12546: TNS: permission denied
    Cause: User has insufficient privileges to perform the requested operation.
    Action: Acquire necessary privileges and try again.
    Pls check the sites suggest by google
    http://dbmotive.com/oracle_error_codes.php?errcode=12546&type=ORA
    http://www.ironspeed.com/Designer/6.2.1/WebHelp/Part_V/ORA_12546_TNS_permission_denied.htm
    Thanks & Regards
    Srikkanth.M

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