Fatal NI connect error TNS-12545,12560,ORA-609 in Database alert log

(Doc ID 2318699.1)

Last updated on NOVEMBER 14, 2017

Applies to:

Oracle Net Services - Version and later
Information in this document applies to any platform.


Connections seems to be failing and reporting following errors in alert log .


Fatal NI connect error 12545, connecting to:

TNS for 64-bit Windows: Version - Production
Oracle Bequeath NT Protocol Adapter for 64-bit Windows: Version - Production
Windows NT TCP/IP NT Protocol Adapter for 64-bit Windows: Version - Production
  Time: 16-OCT-2017 13:47:17
  Tracing not turned on.
  Tns error struct:
  ns main err code: 12545
TNS-12545: Connect failed because target host or object does not exist
  ns secondary err code: 12560
  nt main err code: 0
  nt secondary err code: 0
  nt OS err code: 0
opiodr aborting process unknown ospid (35868) as a result of ORA-609


New installation or Ip address for the database server has been changed to a new static entry


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