TNS Database Error Messages TNS-00552: no valid cipher suites were specified October 9, 2020 mpbod TNS-00552: no valid cipher suites were specified Cause: SSL cipher specs were specified, but none were valid. Action: Specify correct cipher suites. 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)