12c Windows: ORA-12518 Errors Connecting Via Listener if Server is PDC
Last updated on JULY 05, 2016
Applies to:Oracle Net Services - Version 18.104.22.168 to 22.214.171.124 [Release 12.1]
Microsoft Windows x64 (64-bit)
The install has been done on a Primary Domain Controller.
Remote connections via the 12c Listener fail consistently with the ORA-12518 error.
ORA-12518: TNS:listener could not hand off client connection
This is likely a new installation OR the Windows server has recently been promoted to a Primary Domain controller or PDC.
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