The server received an unencrypted message from client when encryption was required. Message was rejected. Client Name: %4 ...

The server received an unencrypted message from client when encryption was required. Message was rejected.

Client Name: %4
Client Address: %8
User Name: %6
Session ID: %9
Share Name: %2

Guidance:

This event indicates that a client is sending unencrypted data even though the SMB share requires encryption.