ORA Database Error Messages ORA-06401: NETCMN: invalid driver designator July 9, 2015 mpbod ORA-06401: NETCMN: invalid driver designator Cause: The login (connect) string contains an invalid driver designator. Action: Correct the string and re-submit. 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)