ORA Database Error Messages ORA-28169: unsupported certificate type August 11, 2017 mpbod ORA-28169: unsupported certificate type Cause: The type of certificate from which the server is to extract the credentials of the client is not supported Action: Specify a supported type 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)