Windows: DISPATCHER FAILS TO START DUE TO PORT CONFLICT WITH CMD.EXE RUNNING QOPIPREP.BAT on Windows 12c
(Doc ID 2196300.1)
Last updated on AUGUST 25, 2017
Applies to:Oracle Net Services - Version 188.8.131.52 to 184.108.40.206 [Release 12.1]
Microsoft Windows x64 (64-bit)
In 12c Windows, startup of dispatcher sometimes fails with port conflict error during instance startup.
The alert.log shows the following message:
dispatcher 'D000' encountered error setting up listening port
-Tracing the dispatcher start up failure, we can see the following error stack:
Network error encountered setting up listening port
listening address for dispatcher is
NS Primary Error: TNS-12542: TNS: address already in use
NS Secondary Error: TNS-12560: TNS: protocol adapter error
NT Generic Error: TNS-00512: Address already in use
64-bit Windows Error: 48: Unknown error
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