10
Client does not support HA.
srv_send_ctlinfo() has failed because the client application does not support extended high availability (HA) failover.
Run Ribo between the client application and server to see if the client is at TDS level 5.0 or later, and that the CS_CAP_EXTENDEDFAILOVER bit is set to CS_TRUE.
Symbolic constant: SRV_ENOSESSION