Database Error Messages

Release
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  • 23ai
  • 21c
  • 19c
Updated
Jun 24, 2024

TNS-12525

TNS:listener has not received client's request in time allowed

Cause

The listener disconnected the client because the client failed to provide the necessary connect information within the allowed time interval. This may be a result of network or system delays; or this may indicate that a malicious client is trying to cause a Denial of Service attack on the listener.


Action

If the error occurred because of a slow network or system, reconfigure INBOUND_CONNECT_TIMEOUT to a larger value. If a malicious client is suspected, use the address in listener.log to identify the source and restrict access. Turn on tracing for more information.