SAP Agent - "No response for EXSTART message"

Products

• CA Automic One Automation

Issue/Introduction

An existing SAP agent was functioning correctly, but now is not connecting to SAP.  The only message seen in the agent log is

"No response for EXSTART message"

 

Deleting and re-adding this agent is not changing the status and the message remains in the log.

Environment

Release : 12.3

Component : AUTOMATION ENGINE

Resolution

The customer was able to resolve the issue by renaming the original HOST object and creating a new HOST object with the original object name.

Simply deleting and re-creating the HOST object did not work as it seems there were still references to that name.
Renaming the original object updated all of the references.
Creating a new HOST object with the original name treated it as a new agent, and is now connecting with the SAP instance as expected.