New Connections Intermittently Rejected with TNS-12525
(Doc ID 566886.1)
Last updated on MARCH 31, 2022
Applies to:Oracle Net Services - Version 220.127.116.11 and later
Oracle Database - Enterprise Edition - Version 18.104.22.168.0 to 22.214.171.124.0 [Release 19]
Information in this document applies to any platform.
At regular intervals (every three hours), you see new connections rejected with TNS-12525 "listener has not received client's request in time allowed".
The listener log shows the following error stack :
Wireshark (Ethereal) traces show the TCP 3-way handshake never completes for those connections.
Value of idle timer was recently changed at firewall level.
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