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Error: 'RPC Server is unavailable'

The client machine displays error "RPC Server is unavailable".

What does this mean?

The error is usually caused because the server can't be located. Make sure you can ping the server machine using the string you typed into the ComputerName property of the TRemoteServer.

  • You might also want to try using an IP address instead in case there is some problem with your DNS configuration or the hosts file. Try setting the "Default Authentication Level" to (Run DCOMCNFG on the server to do this.)

  • It may be that you have a static value in your registry's field PagedPoolSize.

    Set PagedPoolSize to 0 at:

    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management

  • Lastly, check the Microsoft Developer's Network on the Web for the latest information on this Microsoft transport. The MSDN can be located at the time of the writing at You can also try this direct link:;en-us;Q224370

Generated 16:01:25 on Apr 22, 2018