How To Fix TSGEN026 - Server &1 with machine type &2 cannot be reached using RFC

SAP Error Message - Details

• Message type: E = Error

• Message class: TSGEN - Messages For Transaction SGEN

• Message number: 026

• Message text: Server &1 with machine type &2 cannot be reached using RFC

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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Smart SAP Assistant

• What is the cause and solution for SAP error message TSGEN026 - Server &1 with machine type &2 cannot be reached using RFC ?

  The SAP error message TSGEN026 indicates that the specified server (with the server name represented by &1) and machine type (represented by &2) cannot be reached using Remote Function Call (RFC). This error typically arises in scenarios where there is a communication issue between the SAP systems or between an SAP system and an external system.
  Causes:
  
  Network Issues: There may be network connectivity problems preventing the SAP system from reaching the specified server.
  Incorrect Configuration: The RFC destination may be incorrectly configured in the SAP system, leading to connection failures.
  Server Down: The target server may be down or not running the necessary services to accept RFC calls.
  Firewall Restrictions: Firewalls or security settings may be blocking the communication between the systems.
  DNS Resolution Issues: The hostname of the server may not be resolving correctly due to DNS issues.
  SAP Gateway Issues: The SAP Gateway service may not be running or may be misconfigured.
  
  Solutions:
  
  
  Check Network Connectivity:
  
  Use tools like ping or traceroute to check if the server is reachable from the SAP system.
  Ensure that there are no network outages or issues.
  
  
  
  Verify RFC Destination Configuration:
  
  Go to transaction SM59 in the SAP GUI.
  Check the configuration of the RFC destination that corresponds to the server in question.
  Ensure that the connection type, target host, and system number are correctly configured.
  
  
  
  Check Server Status:
  
  Ensure that the target server is up and running.
  Verify that the necessary SAP services (like the SAP Gateway) are active.
  
  
  
  Review Firewall Settings:
  
  Check if there are any firewall rules that might be blocking the RFC communication.
  Ensure that the necessary ports (usually 3200 for SAP) are open.
  
  
  
  DNS Configuration:
  
  Verify that the hostname used in the RFC destination can be resolved to the correct IP address.
  If necessary, update the DNS settings or use the IP address directly in the RFC destination.
  
  
  
  SAP Gateway Configuration:
  
  Check the SAP Gateway settings and ensure that it is properly configured to accept incoming connections.
  You can also check the logs for any errors related to the Gateway.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: To manage RFC destinations.
  SMGW: To monitor the SAP Gateway.
  SICF: To check and manage HTTP services.
  
  
  
  Logs:
  
  Check the system logs (SM21) and developer traces (ST22) for any additional error messages that might provide more context.
  
  
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that might address specific issues related to TSGEN026.
  
  
  By following these steps, you should be able to diagnose and resolve the TSGEN026 error effectively. If the issue persists, consider reaching out to your SAP Basis team or SAP support for further assistance.