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Resolving "The RPC Server is Unavailable" Error on Everest V8.0.15.879

Overview

The error "The RPC server is unavailable" was encountered when attempting to connect the client software to the database server after changes in directory service. This issue occurred on Everest version V8.0.15.879 and was resolved by adding missing permissions to the server configuration. The problem typically arises when there are changes in network or directory services that affect server connectivity and authentication.

Information

Error Message: "The RPC server is unavailable"

Affected Version: Everest V8.0.15.879

Resolution Steps:

  1. Verify SQL Server Configuration:
    • Ensure SQL Server service is running and SQL Server Browser service is set to Automatic and Running.
    • Check that TCP/IP and Named Pipes are enabled in SQL Server Network Configuration.
  2. Check Firewall and Network Settings:
    • Ensure inbound TCP port 1433 is allowed on the database server firewall.
    • Test connectivity to the database server using: 
      ping <db_server_fqdn>
Test-NetConnection -ComputerName <db_server_fqdn> -Port 1433
  3. Test SQL Connectivity:
    • Use SQL Server Management Studio or sqlcmd to test connection to the SQL instance with the same credentials used by Everest.
  4. Review Directory Service Changes:
    • Confirm any changes in domain, group policies, or service account permissions that might affect connectivity.
  5. Add Missing Permissions:
    • Follow the document "Error: 'Application Server does not exist'" to ensure all necessary permissions are configured correctly.
  6. Verify Resolution:
    • Test the client software on multiple clients to confirm connectivity is restored.

Note: If issues persist, ensure that all network and directory service changes are aligned with the recommended setup guidelines.

Frequently Asked Questions

How do I know if this error applies to my situation?
You'll see the error message "The RPC server is unavailable" when attempting to connect the client software to the database server, especially after changes in directory services or network configuration.
What should I check if the error persists after following the resolution steps?
Ensure that all necessary permissions are added, and verify that the SQL Server and network configurations are correct. If the issue persists, review any recent changes in directory services or network settings that might affect connectivity.
Can changes in directory services affect server connectivity?
Yes, changes in directory services, such as domain renames or service account modifications, can impact server connectivity and authentication, leading to errors like "The RPC server is unavailable."
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  1. Priyanka Bhotika

  2. Posted

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