3624609 - Backint based backups are failing - Error in connection to ProLE

There are backups failing (backint based backups to TSM) and the following set of messages can be seen in the backint log: 

ERROR   BACKUP   SAVE DATA finished with error: [447] backup could not be completed, [110507] Backint exited with exit code 2 instead of 0. console output:                 IBM Spectrum Protect for Enterprise Resource Planning                           Data Protection for SAP HANA(R)                - Version 8, Release 1, Modification 11.0  for Linux x86_64  Licensed Materials - Property of IBM. (c) Copyright IBM Corporation 1996, 2020  All Rights Reserved.  

#SOFTWAREID "backint 1.50" "IBM Spectrum Protect for Enterprise Resource Planning - Data Protection for SAP HANA(R) 8.1.11.0"

BKI2024E: Error in connection to ProLE.

BKI9204E: Additional support information: An exception was thrown at position: esd-portalcommunicator.cpp(380) (text_BKI9217E: Additional support information: An exception was thrown at position: esd-socket.cpp(327). ). BKI9300E: Additional support information: Aborting 'send' operation. See previous error. , [110203] Not all data could be written: Expected 4096 but transferred 0, [110203] Not all data could be written: Expected 4096 but transferred 0 

Tivoli, TSM, backup, backint, BKI2024E, BKI9204E, error in connection to ProLE, IBM , KBA , HAN-DB-BAC , SAP HANA Backup & Recovery , Problem