TNS Database Error Messages TNS-12599: TNS:cryptographic checksum mismatch December 17, 2020 mpbod TNS-12599: TNS:cryptographic checksum mismatch Cause: The data received is not the same as the data sent. Action: Attempt the transaction again. If the error persists, check (and correct) the integrity of your physical connection. 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)