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Solution to "ORA-12569: TNS:packet checksum failure" Problem

Solution to "ORA-12569: TNS:packet checksum failure" Problem



While i was trying to run a full table scan on one of our test servers, i was facing the following error.


Each time I clicked the OK button the system was showing a message saying "Not connected to oracle", and i had to connect to the database again.

Later on after searching the net i have found that the main problem was in oracle's port number. My port number was the default 1521.

So, i just created a new LISTENER with a new port number other than the default one(1521). and guess what, the problem was resolved.

I had to change my tns entry using which i was connecting to the database.

thats all.


thanks for reading this article.
have a good day.

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