How To Fix NET029 - Time required to resolve IP address to IP name

SAP Error Message - Details

• Message type: E = Error

• Message class: NET - Network Messages

• Message number: 029

• Message text: Time required to resolve IP address to IP name

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 NET029 - Time required to resolve IP address to IP name ?

  The SAP error message NET029 indicates that there is a delay or timeout in resolving an IP address to its corresponding hostname. This can occur in various scenarios, such as when the SAP system is trying to connect to a database, application server, or any other network resource.
  Cause:
  
  DNS Issues: The most common cause is a problem with the Domain Name System (DNS) configuration. The DNS server may be slow, unresponsive, or misconfigured.
  Network Latency: High latency in the network can lead to delays in resolving IP addresses.
  Hosts File Configuration: If the hosts file on the server is not configured correctly, it may lead to resolution issues.
  Firewall or Security Settings: Firewalls or security settings may block DNS queries or responses.
  Incorrect SAP Configuration: The SAP system may be configured with incorrect hostnames or IP addresses.
  
  Solution:
  
  
  Check DNS Configuration:
  
  Ensure that the DNS server settings are correct in the network configuration of the SAP server.
  Test DNS resolution using command-line tools like nslookup or ping to verify that the hostname resolves correctly.
  
  
  
  Modify Hosts File:
  
  If DNS is not reliable, consider adding the necessary hostname and IP address mappings to the /etc/hosts file (on Unix/Linux) or C:\Windows\System32\drivers\etc\hosts (on Windows).
  
  
  
  Network Troubleshooting:
  
  Check for network issues that may be causing latency. Use tools like traceroute or ping to diagnose network paths.
  Ensure that there are no firewall rules blocking DNS traffic.
  
  
  
  SAP Configuration:
  
  Review the SAP instance profile parameters to ensure that the correct hostnames and IP addresses are configured.
  Check the SAP GUI settings if applicable, to ensure that the connection parameters are correct.
  
  
  
  Increase Timeout Settings:
  
  If the DNS server is known to be slow, consider increasing the timeout settings in the SAP configuration to allow more time for resolution.
  
  
  
  Consult Logs:
  
  Check the SAP system logs (transaction SM21) for any additional error messages that may provide more context about the issue.
  
  
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to the NET029 error.
  Network Monitoring Tools: Utilize network monitoring tools to analyze DNS performance and identify bottlenecks.
  Documentation: Refer to SAP documentation for network configuration best practices and troubleshooting steps.
  
  By following these steps, you should be able to diagnose and resolve the NET029 error effectively. If the problem persists, consider reaching out to your network administrator or SAP support for further assistance.