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  1. #1
    Join Date
    Oct 2009
    Posts
    2

    Unanswered: TNS-12518: TNS:listener could not hand off client connection

    While tring to connect the Oracle DataBase from VB.NET Application, it throws error as TNS-12518: TNS:listener could not hand off client connection, Same Error occures while connecting from TOAD application also. Can anyone please guide me to solve this issue..

    My Listener.ORA file contains the following details,
    SID_LIST_LISTENER =
    (SID_LIST =
    (SID_DESC =
    (SID_NAME = PLSExtProc)
    (ORACLE_HOME = E:\oraclexe\app\oracle\product\10.2.0\server)
    (PROGRAM = extproc)
    )
    (SID_DESC =
    (SID_NAME = CLRExtProc)
    (ORACLE_HOME = E:\oraclexe\app\oracle\product\10.2.0\server)
    (PROGRAM = extproc)
    )
    (SID_DESC =
    (SID_NAME = Oracle_MigratedDB)
    (ORACLE_HOME = E:\oraclexe\app\oracle\product\10.2.0\server)
    (GLOBAL_DBNAME = Oracle_MigratedDB)
    )
    )

    LISTENER =
    (DESCRIPTION_LIST =
    (DESCRIPTION =
    (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC_FOR_XE))
    (ADDRESS = (PROTOCOL = TCP)(HOST = Rider)(PORT = 1521))
    )
    )

    DEFAULT_SERVICE_LISTENER = (XE)



    Thanks in advance,

    With Regards,
    Rider

  2. #2
    Join Date
    Aug 2003
    Location
    Where the Surf Meets the Turf @Del Mar, CA
    Posts
    7,776
    Provided Answers: 1
    When was the last time you could successfully connect to DB via SQL*Net?
    What changed?

    Post tail end ( 30 - 40 lines) from listener.log from DB server system.
    You can lead some folks to knowledge, but you can not make them think.
    The average person thinks he's above average!
    For most folks, they don't know, what they don't know.
    Good judgement comes from experience. Experience comes from bad judgement.

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