How To Fix NET037 - Number of stations between sender and receiver

SAP Error Message - Details

• Message type: E = Error

• Message class: NET - Network Messages

• Message number: 037

• Message text: Number of stations between sender and receiver

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 NET037 - Number of stations between sender and receiver ?

  The SAP error message NET037, which states "Number of stations between sender and receiver," typically occurs in the context of network communication issues within SAP systems. This error indicates that there are too many intermediate nodes (or stations) between the sender and receiver in the network configuration, which can lead to communication problems.
  Cause:
  
  Network Configuration: The error often arises due to an incorrect or overly complex network configuration. If there are too many routers, gateways, or other network devices between the SAP application server and the database server, it can exceed the limit set by SAP for the number of hops.
  Firewall or Security Settings: Firewalls or security settings may be blocking or limiting the number of connections or hops allowed between the sender and receiver.
  SAP System Configuration: The SAP system may not be configured correctly to handle the network topology, leading to communication issues.
  
  Solution:
  
  Review Network Topology: Check the network topology to identify the number of hops between the sender and receiver. Try to minimize the number of intermediate devices if possible.
  Adjust Network Settings: If feasible, adjust the network settings to allow for more hops or to optimize the routing of packets between the sender and receiver.
  Check Firewall Rules: Ensure that firewall rules are not overly restrictive and are allowing the necessary traffic between the SAP application server and the database server.
  SAP Configuration: Review the SAP configuration settings related to network communication. Ensure that the parameters for communication are set correctly.
  Consult SAP Notes: Look for relevant SAP Notes or documentation that may provide specific guidance or patches related to this error message.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for network configuration and troubleshooting.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Network Monitoring Tools: Utilize network monitoring tools to analyze the traffic and identify where the communication breakdown is occurring.
  
  If the issue persists after trying the above solutions, it may be beneficial to involve your network administrator or SAP support for further assistance.