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  1. #1
    Join Date
    Mar 2004
    Posts
    3

    Unanswered: TNS 12571 Error on Select Client Win 2000 Machines

    I have Oracle 9i 9.2.0.1.0 on a Win 2000 Server and about 12 client installs of Oracle Discoverer 4.1.48.06 on various Windows OS. Three of these clients return TNS-12571 errors using tnsping80 (by coincident all three machines are laptops). I have a high level of confidence that all supporting .ora file are error free, as I have at least 10 other install that work without any problems.

    I have read many postings on Metalink that point to two areas. The first is that there is a network issue and suggest replacing the network card. The second have identified some software that interfere with network traffic. I have exhausted both of these leads and I'm looking for other possibilities.


    I was thinking that the numerous Microsoft "Hot Fixes" or patches might at least be contributing to the problem.

  2. #2
    Join Date
    Apr 2003
    Location
    Greenville, SC (USA)
    Posts
    1,155
    By chance are the machines that ARE working using at least Oracle 8.1 client and NOT Oracle 8.0 ....?????

    Gregg

  3. #3
    Join Date
    Mar 2004
    Posts
    3
    Originally posted by gbrabham
    By chance are the machines that ARE working using at least Oracle 8.1 client and NOT Oracle 8.0 ....?????

    Gregg

    Nope, all identical installs. 8.0 I guess? I'm not sure how to check.

  4. #4
    Join Date
    Apr 2003
    Location
    Greenville, SC (USA)
    Posts
    1,155
    tnsping -vs- tnsping80 ....

    Are the TNSNAMES.ORA exactly the same for all machines ??

    \network\admin directory ...

    The PATH statements are the same ???

    Can you ping the server ... by name and/or IP ???

    Is the directory structure something like c:\orant\...
    or c:\oracle or c:\ora81 .... ???

    SQLNET.ORA ... Is this file the same on all machines ... also located in
    \network\admin ... what are the values for :

    SQLNET.AUTHENTICATION_SERVICES= (????)
    NAMES.DIRECTORY_PATH= (????)

    You might try to change authentication_services to NONE ie; (NONE)

    HTH
    Gregg

  5. #5
    Join Date
    Mar 2004
    Posts
    3
    I've found the problem. Thanks for your help. I was able to obtain a new laptop with a clean image and started installing client software. After installing software to support a wireless modem I got the TNS 12571 error. After uninstalling a piece of the wireless software used for TCP traffic control and compression my tns connections came back to life.

    Thanks,
    Jon

  6. #6
    Join Date
    Apr 2003
    Location
    Greenville, SC (USA)
    Posts
    1,155
    Good ... Congrats

    Gregg

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