What are the reasons for Oracle TNS connection timeout?

1 year ago
Ava Mitchell
1 minute

Here are possible reasons for Oracle TNS connection timeouts:

  1. Internet issue: the TNS connection timeout may be caused by unstable or delayed network connections.
  2. Configuration issue: it may be due to incorrect parameter settings in the TNS configuration file, or incorrect listener configuration leading to connection time out.
  3. Server load: High server load may lead to TNS connection timeouts.
  4. Firewall issue: Incorrect firewall settings can lead to TNS connection timeouts.
  5. Database service issue: If there are anomalies or poor performance in the database service, it may result in TNS connection timeouts.
  6. Client issue: The TNS connection timeout may be caused by a malfunction or improper operation of the client application.
  7. Other potential issues may have caused the TNS connection timeout, which requires further investigation.
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