Running Policy Server, this one reports the error:
Bad security handshake attempt. Handshake error: 3154
Handshake error: Shared secret incorrect for this client
Failed handshake with ::ffff:10.0.0.1:58448
Identity Manager 14.1;
Policy Server 12.8SP8CR01.
According to Identity Manager documentation, the password used for the 4.x agent should contain only an alphanumeric character and no special characters (1).
A password containing "@" character, or any character outside the alphanumeric list, won't work.