Error: 'ORA-12528: TNS:listener: all appropriate instances are blocking new connections' When Connecting To The Project or Methodology Management Database (Doc ID 914099.1)

Last updated on MARCH 09, 2017

Applies to:

Primavera P6 Enterprise Project Portfolio Management - Version 7.0 and later
Primavera P6 Professional Project Management - Version 7.0 and later
Primavera Contract Management - Version 12.0 and later
All Platforms
***Checked for relevance on 28-April-2014***
***Checked for relevance on 08-Oct-2015***


When logging into Project Management or Methodology Management or establishing a new connection to the database, the following connection failure occurs: 

This can most commonly occur on a Windows operating system, using an Oracle XE, 10g or 11g database.


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