Transactions start with SYN and always end with [RST, ACK]
For a reset/connection refused issue we are experiencing, you supplied a tcpdump as a diagnostic from which we could see that every transaction starts with SYN and ends (after [FIN, ACK]) with [RST, ACK] called by Pega client. We need to know the reason of such a behaviour because a reset for every transaction seems odd (there is evidence of warning in logs) and, moreover, since the connection refused issue occurs when our server calls for a RST. Thank you.