How To Fix /STMC/CR_MSG336 - Error while resolving host name '&1'; rc=&2

SAP Error Message - Details

• Message type: E = Error

• Message class: /STMC/CR_MSG -

• Message number: 336

• Message text: Error while resolving host name '&1'; rc=&2

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 /STMC/CR_MSG336 - Error while resolving host name '&1'; rc=&2 ?

  The SAP error message /STMC/CR_MSG336 indicates that there is an issue with resolving a hostname in the system. This error typically occurs when the system is unable to translate a hostname into an IP address, which can prevent communication with other systems or services.
  Cause:
  
  DNS Issues: The hostname may not be correctly configured in the Domain Name System (DNS), or the DNS server may be unreachable.
  Hosts File: The hostname may not be listed in the local /etc/hosts file (on Unix/Linux systems) or C:\Windows\System32\drivers\etc\hosts (on Windows systems).
  Network Configuration: There may be network issues preventing the system from reaching the DNS server or the target host.
  Firewall or Security Settings: Firewalls or security settings may be blocking access to the hostname.
  Typographical Errors: There may be a typo in the hostname being used in the configuration.
  
  Solution:
  
  
  Check DNS Configuration:
  
  Verify that the DNS server is reachable from the SAP system.
  Use commands like nslookup or ping to check if the hostname can be resolved.
  
  
  
  Update Hosts File:
  
  If the hostname is not resolvable via DNS, consider adding an entry to the /etc/hosts file (Linux/Unix) or the hosts file (Windows) with the correct IP address and hostname.
  
  
  
  Network Troubleshooting:
  
  Check network connectivity to ensure that there are no issues with the network that could be causing the hostname resolution to fail.
  Use tools like traceroute or ping to diagnose network paths.
  
  
  
  Firewall Settings:
  
  Review firewall settings to ensure that they are not blocking DNS queries or access to the hostname.
  
  
  
  Check for Typos:
  
  Double-check the configuration for any typographical errors in the hostname.
  
  
  
  SAP Configuration:
  
  If the hostname is part of an SAP configuration (like RFC destinations), ensure that the configuration is correct and that the hostname is properly defined.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific guidance or patches related to this error message.
  System Logs: Review system logs for additional error messages that may provide more context about the issue.
  Network Configuration Documentation: Refer to your organization's network configuration documentation for details on DNS and hostname resolution.
  
  If the issue persists after trying the above solutions, consider reaching out to your network administrator or SAP support for further assistance.