How To Fix ARBFND_FRW603 - Host name &1 is different from standard AN Gateway host &2

SAP Error Message - Details

• Message type: E = Error

• Message class: ARBFND_FRW - Message class for package ARBFND_FRAMEWORK

• Message number: 603

• Message text: Host name &1 is different from standard AN Gateway host &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message ARBFND_FRW603 - Host name &1 is different from standard AN Gateway host &2 ?

  The SAP error message ARBFND_FRW603 indicates a mismatch between the host name of the application server and the standard Application Server Gateway (AN Gateway) host. This error typically arises in scenarios involving SAP's Application Server and its communication with the Gateway.
  Cause:
  The error occurs when the hostname of the server where the application is running does not match the hostname configured in the SAP Gateway settings. This can happen due to:
  
  Configuration Issues: The hostname in the SAP system configuration does not match the actual hostname of the server.
  Network Changes: Changes in the network configuration or server hostname that have not been updated in the SAP system.
  Multiple Instances: Running multiple instances of SAP on different hosts without proper configuration.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Hostname Configuration:
  
  Verify the hostname of the server where the SAP application is running. You can do this by executing the command hostname in the command line of the server.
  Compare this hostname with the one configured in the SAP Gateway settings.
  
  
  
  Update SAP Gateway Configuration:
  
  Access the SAP system and navigate to transaction SMGW (Gateway Monitor).
  Check the configuration settings for the Gateway. You can find the hostname in the Gateway settings.
  If the hostname is incorrect, you may need to update it. This can typically be done in the instance profile or through transaction RZ10 (Profile Maintenance).
  
  
  
  Modify Instance Profile:
  
  If necessary, modify the instance profile to ensure that the correct hostname is set. Look for parameters like gw/host and gw/service in the profile.
  After making changes, restart the SAP instance for the changes to take effect.
  
  
  
  Check DNS Configuration:
  
  Ensure that the DNS settings are correctly configured and that the hostname resolves properly. You can use commands like nslookup or ping to verify DNS resolution.
  
  
  
  Restart Services:
  
  After making the necessary changes, restart the SAP Gateway and the application server to ensure that the new settings are applied.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to this error message for any specific patches or updates that may address the issue.
  Documentation: Refer to SAP documentation for detailed instructions on configuring the Gateway and troubleshooting connectivity issues.
  Logs: Review the logs in transaction SM21 (System Log) for any additional error messages that may provide more context about the issue.
  
  By following these steps, you should be able to resolve the ARBFND_FRW603 error and ensure proper communication between the SAP application server and the Gateway.