TNS Database Error Messages TNS-03603: Encountered a node with pre-2.3 version of SQL*Net November 5, 2020 mpbod TNS-03603: Encountered a node with pre-2.3 version of SQL*Net Cause: Any version of SQL*Net before 2.3 does not support TRCROUTE. Action: Find the node that is not responding to TRCROUTE. Back to previous menu https://support.oracle.com/ http://www.oracle.com/ Share this:Click to email a link to a friend (Opens in new window)Click to print (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pocket (Opens in new window)