How To Fix INST_MSG816 - No protocol available

SAP Error Message - Details

• Message type: E = Error

• Message class: INST_MSG - Messages for Installation Post-Processing

• Message number: 816

• Message text: No protocol available

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.

What else can you do?

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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.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message INST_MSG816 - No protocol available ?

  The SAP error message "INST_MSG816 No protocol available" typically indicates that there is an issue with the network configuration or the communication protocols that are required for the SAP system to function properly. This error can occur in various scenarios, such as during the installation of SAP, while starting the SAP application server, or when trying to connect to the database.
  Causes:
  
  Network Configuration Issues: The network settings on the server may not be configured correctly, leading to communication failures.
  Missing Protocols: The required communication protocols (like TCP/IP) may not be installed or enabled on the server.
  Firewall or Security Settings: Firewalls or security settings may be blocking the necessary ports or protocols.
  Incorrect SAP Profile Settings: The SAP instance profile may not be configured correctly, leading to protocol issues.
  Operating System Issues: The underlying operating system may have issues or misconfigurations that affect network communication.
  
  Solutions:
  
  
  Check Network Configuration:
  
  Ensure that the network settings (IP address, subnet mask, gateway) are correctly configured.
  Verify that the server can communicate with other servers and clients on the network.
  
  
  
  Verify Installed Protocols:
  
  Check if the required communication protocols (like TCP/IP) are installed and enabled on the server.
  On Unix/Linux systems, you can check the available protocols using commands like ifconfig or ip addr.
  
  
  
  Firewall Settings:
  
  Review firewall settings to ensure that the necessary ports for SAP communication are open.
  Temporarily disable the firewall to see if it resolves the issue (ensure to re-enable it afterward).
  
  
  
  Review SAP Profile Settings:
  
  Check the instance profile settings in the SAP system to ensure that the correct protocols are specified.
  Use transaction RZ10 to view and modify the instance profile.
  
  
  
  Operating System Checks:
  
  Ensure that the operating system is up to date and that there are no known issues affecting network communication.
  Restart the network services or the entire server if necessary.
  
  
  
  Logs and Traces:
  
  Check the SAP logs (dev_w0, dev_r0, etc.) for more detailed error messages that can provide additional context.
  Use transaction SM21 to view system logs for any related errors.
  
  
  
  Related Information:
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error.
  Documentation: Review the SAP installation and configuration documentation for guidance on network settings and protocol configurations.
  Community Forums: Engage with SAP community forums or support channels for additional insights and solutions from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, it may be necessary to contact SAP support for further assistance.