How To Fix WRF_UPGRADE_MSG017 - Communication failure while starting remote function call &4

SAP Error Message - Details

• Message type: E = Error

• Message class: WRF_UPGRADE_MSG -

• Message number: 017

• Message text: Communication failure while starting remote function call &4

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 WRF_UPGRADE_MSG017 - Communication failure while starting remote function call &4 ?

  The SAP error message WRF_UPGRADE_MSG017 indicates a communication failure while starting a Remote Function Call (RFC). This error can occur in various scenarios, often related to issues with network connectivity, configuration, or system settings. Below are some potential causes, solutions, and related information for this error:
  Causes:
  
  Network Issues: There may be a problem with the network connection between the SAP systems involved in the RFC call.
  RFC Destination Configuration: The RFC destination may not be configured correctly in the SAP system.
  Authorization Issues: The user credentials used for the RFC call may not have the necessary authorizations.
  System Availability: The target system may be down or not reachable due to maintenance or other issues.
  Firewall or Security Settings: Firewalls or security settings may be blocking the communication between the systems.
  SAP Kernel or Version Mismatch: There may be compatibility issues between different SAP versions or kernels.
  
  Solutions:
  
  
  Check Network Connectivity:
  
  Use tools like ping or traceroute to verify that the systems can communicate over the network.
  Ensure that there are no network outages or issues.
  
  
  
  Verify RFC Destination:
  
  Go to transaction SM59 and check the configuration of the RFC destination.
  Test the connection from the SAP GUI to ensure it is working correctly.
  
  
  
  Check User Authorizations:
  
  Ensure that the user used for the RFC call has the necessary authorizations in both the source and target systems.
  
  
  
  System Availability:
  
  Check if the target system is up and running. You can do this by logging into the target system or checking system logs.
  
  
  
  Firewall and Security Settings:
  
  Ensure that any firewalls or security settings allow traffic on the required ports for SAP communication (typically port 3200 for SAP GUI).
  
  
  
  Review SAP Notes:
  
  Check for any relevant SAP Notes that may address known issues related to this error message. You can search for notes in the SAP Support Portal.
  
  
  
  Check SAP Kernel Version:
  
  Ensure that both systems are running compatible versions of the SAP kernel. If there are discrepancies, consider upgrading or patching the systems.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: To manage RFC destinations.
  SM21: To check system logs for any related errors.
  ST22: To check for dumps that may provide more context on the error.
  
  
  
  SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. Provide them with detailed logs and error messages to facilitate troubleshooting.
  
  
  By following these steps, you should be able to identify and resolve the communication failure associated with the RFC call in your SAP environment.