How To Fix SATCM228 - Lost CSN connection

SAP Error Message - Details

• Message type: E = Error

• Message class: SATCM - Check Result Management / Transaction CheckMan

• Message number: 228

• Message text: Lost CSN connection

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SATCM228 - Lost CSN connection ?

  The SAP error message SATCM228 "Lost CSN connection" typically indicates that there is a problem with the connection to the Central Services Number (CSN) in an SAP system landscape. This can occur in various scenarios, particularly in distributed systems where multiple application servers are involved.
  Causes:
  
  Network Issues: There may be network connectivity problems between the application server and the Central Services (CS) instance.
  CS Instance Down: The Central Services instance may be down or not responding.
  Configuration Issues: Incorrect configuration settings in the SAP system, such as incorrect hostnames or ports for the CS instance.
  Resource Limitations: The server hosting the CS instance may be experiencing high load or resource limitations (CPU, memory, etc.).
  Firewall Settings: Firewall rules may be blocking the necessary ports for communication between the application server and the CS instance.
  
  Solutions:
  
  Check Network Connectivity: Ensure that the application server can reach the CS instance. You can use tools like ping or telnet to test connectivity.
  Verify CS Instance Status: Check if the Central Services instance is running. You can do this by logging into the server where the CS instance is hosted and checking the SAP system status.
  Review Configuration: Verify the configuration settings in the SAP system. Check the instance profile and ensure that the parameters for the CS instance are correctly set (e.g., ms/host, ms/port).
  Monitor Resource Usage: Check the resource usage on the server hosting the CS instance. If the server is under heavy load, consider optimizing performance or scaling resources.
  Firewall Configuration: Ensure that the firewall settings allow traffic on the necessary ports for SAP communication (typically port 36xx for the application server and 3xx0 for the CS instance).
  Restart Services: If the issue persists, consider restarting the Central Services instance and the application server to re-establish connections.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to the error message SATCM228 for any specific patches or updates that may address the issue.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Logs: Review the SAP system logs (transaction SM21) and the developer traces (transaction ST11) for more detailed error messages that may provide additional context for the connection loss.
  
  If the problem continues after trying the above solutions, it may be necessary to involve SAP support for further assistance.