This error is being displayed:
XCOMN0297E Error requesting header confirmation: XCOMN0780E TCPIP 506: Partner ended TCPIP connection unexpectedly.
The XCOM transfer works on port 8044 on non-SSL the error happens only on SSL port 8045
XCOM™ Data Transport® for Windows
Configuration problem.
XCOM designates port 8045 as the default port for SSL transfers. In other words if you will be transferring to port 8045 you must have created/have SSL certificates on the partner system and specify parameter SECURE_SOCKET=YES for that transfer to be successful. Otherwise, you will receive message:
XCOMN0297E Error requesting header confirmation: XCOMN0780E TCPIP 506: Partner ended TCPIP connection unexpectedly.