title: ORA-12570: Network Session - after running 20 odd minutes
body: <p>We are getting network session error. </p>
  
  <blockquote>
    <p>"ORA-12570: Network Session: Unexpected packet read error".</p>
  </blockquote>
  
  <p>This comes after running queries 20-21 minutes. Its consistently throwing this error in all cases if I run a single query or multiple queries. </p>
  
  <p>Till 20 mins it works fine and the logs show all fine. We are fetching prod log records to store it in a master csv file. The log records are in millions and it takes a lot time to fetch. It was running successfully till last month.</p>
  
  <ul>
  <li>I have taken latest ODP.net "Oracle.ManagedDataAccess.12.1.24160419" through nuget.</li>
  <li>Tried with various Pooling options. Even pooling off also didn't help.</li>
  </ul>
  
  <p>How can I solve the error . Thanks in advance for help.</p>