“The RPC server is unavailable” while trying to take Remote Desktop of 2003 Server

When trying to logon to Windows server 2003 via remote desktop you receive the following message:

The system cannot log you on due to the following error:
The RPC server is unavailable.
Please try again or consult your system administrator.

You will also receive the following event in the target server’s application event log:

Event ID: 1219
Logon rejected for Domain\User. Unable to obtain Terminal Server User Configuration. Error: The RPC server is unavailable.

To resolve this :

1. Locate the following registry subkey:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server
2. Create a new DWORD called IgnoreRegUserConfigErrors
3. Give it a value of 1

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