How To Fix XS751 - Message cannot currently be transferred to node & due to connection error

XS751 - Overview

• Message type: E = Error

• Message class: XS - SAPconnect: All messages

• Message number: 751

• Message text: Message cannot currently be transferred to node & due to connection error

What causes this issue?

The message was processed correctly in the SAP system. Due to a
technical fault, the connection to the server &V2& could not be
established or was interrupted.

System Response

The system has marked the message for a resend attempt. The message has
not yet been sent.
Information from external system (if available)
&V4&&V3&
Procedure for the administrator
Check the connection from the SAP system to node &V1&.

Error message extract from SAP system. Copyright SAP SE.

XS751 - Details

• The SAP error message XS751 indicates that there is a connection issue preventing a message from being transferred to a specific node. This error typically occurs in SAP systems that utilize the SAP HANA Extended Application Services (XS) or similar distributed architectures.
  Causes:
  
  Network Issues: There may be network connectivity problems between the nodes, such as firewalls blocking traffic or network outages.
  Node Unavailability: The target node may be down or not reachable due to maintenance or unexpected failures.
  Configuration Errors: Incorrect configuration settings in the SAP system or in the network settings can lead to connection issues.
  Resource Limitations: The target node may be overloaded or running out of resources (CPU, memory, etc.), causing it to reject new connections.
  Timeouts: If the connection takes too long to establish, it may time out, leading to this error.
  
  Solutions:
  
  Check Network Connectivity: Ensure that there is proper network connectivity between the nodes. You can use tools like ping or