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ORA-12571: TNS Packet writer failure August 28, 2007

Posted by Muhammad Habib in Oracle Developer.
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Strange error!

My developer was running fine . why I got this error.

I had tried many solutions provided on web by oracle experts but unable to connect my developer to database. I had tried to remove developer from C:\orant directory and also from registry. Then I re-installed it. But I got same error. I made parameter sqlnet authentication … to “None” in “SQLNET.ORA” file – but unable to solve this problem.

At last I analyzed that after which event I was getting this error. That was installation of a software – Download Manager.

Actually it was interrupting services. At last I removed this software and connected successfully developer to DB.

Hope it will be helpful.

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