Re: concurrent manager issue

Posted by ErmanArslansOracleBlog on Apr 04, 2018; 3:39pm
URL: http://erman-arslan-s-oracle-forum.124.s1.nabble.com/concurrent-manager-issue-tp5557p5568.html

This is a pure db connection problem..

Please follow this document: Troubleshooting Guide for ORA-12537 / TNS-12537 TNS:Connection Closed (Doc ID 555609.1)

The document above covers the throubleshooting.. So while you are following the document above, you will solve your issue.