Oracle Message TNS-12660 - Encryption or crypto-checksumming parameters incompatible

ERROREncryption or crypto-checksumming parameters incompatible
CAUSEOne side of the connection specified REQUIRED for encryption or crypto-checksumming, while the other side specified REJECTED.
ACTIONChange the REQUIRED side to REQUESTED if the you want encryption or crypto-checksumming to be optional, or change the REJECTED side to ACCEPTED if you do not want the service to be optional.