Windows: ORA-12542: TNS: Address Already In Use
(Doc ID 2261112.1)
Last updated on JANUARY 01, 2020
Applies to:Oracle Net Services - Version 220.127.116.11 to 18.104.22.168 [Release 11.2 to 12.2]
Information in this document applies to any platform.
An Application (such as Trapeze) running on a Windows machine, may be hitting the following errors intermittently:
ORA-12542: TNS: address already in use
This may or may not be in a High Transaction environment.
There may have been a recent installation of a Security program, such as Checkpoint.
There may have been a recent reboot of the Windows machine which has resulted in the above security program now being active.
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