The most common reasons for decryption failures are TLS protocol errors, cipher version
errors (client and server version mismatches and client and Decryption profile
version mismatches), and certificate errors. To investigate
decryption errors, start with the
Application Command Center (ACC) to identify failures and then go to the Decryption
logs to drill down into details.
For additional information about these errors
and possible remediation, see
Decryption Log Errors, Error Indexes, and
Bitmasks.