TNS Database Error Messages TNS-00111: Failed to get configuration data from file September 30, 2020 mpbod TNS-00111: Failed to get configuration data from file Cause: Poorly formed configuration information in network files TNSNET.ORA or TNSNAV.ORA. Action: Check TNSNET.ORA and TNSNAV.ORA and confirm that they are correct. 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)