TNS Database Error Messages TNS-12547: TNS:lost contact December 16, 2020 mpbod TNS-12547: TNS:lost contact Cause: Partner has unexpectedly gone away, usually during process startup. Action: Investigate partner application for abnormal termination. On an Interchange, this can happen if the machine is overloaded. 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)