The server principal is configured for user-to-user authentication only. The client must use the ENC-TKT-IN-SKEY option and supply the server's TGT.
Numeric value: 27
KDC_ERR_MUST_USE_USER2USER
kerberos The server principal is configured for user-to-user authentication only. The client must use the ENC-TKT-IN-SKEY option and supply the server's TGT.
Numeric value: 27