Tengo una instalación bastante reciente de Windows 8 en la máquina de un usuario y no puedo hacer RDP en ella, falla inmediatamente y dice que no se puede conectar. Puede conectarse al puerto a través de telnet y puede ver que RDP escucha en el puerto correcto a través de netstat. He intentado desde Windows 8 y Windows 7 hosts. He visto los siguientes errores en el registro de eventos cuando intento una conexión.

Log Name:      System
Source:        Schannel
Date:          1/15/2013 5:07:05 PM
Event ID:      36870
Task Category: None
Level:         Error
Keywords:      
User:          SYSTEM
Description:
A fatal error occurred when attempting to access the SSL server credential private key. The error code returned from the cryptographic module is 0x8009030D. The internal error state is 10001.

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Log Name:      System
Source:        Schannel
Date:          1/15/2013 2:50:14 PM
Event ID:      36887
Task Category: None
Level:         Error
Keywords:      
User:          SYSTEM
Description:
A fatal alert was received from the remote endpoint. The TLS protocol defined fatal alert code is 49.

También he visto la siguiente advertencia, pero no estoy seguro de si está relacionada.

Log Name:      System
Source:        LsaSrv
Date:          1/15/2013 5:06:28 PM
Event ID:      6038
Task Category: None
Level:         Warning
Keywords:      Classic
User:          N/A
Description:
Microsoft Windows Server has detected that NTLM authentication is presently being used between clients and this server. This event occurs once per boot of the server on the first time a client uses NTLM with this server.

NTLM is a weaker authentication mechanism. Please check:

      Which applications are using NTLM authentication?
      Are there configuration issues preventing the use of stronger authentication such as Kerberos authentication?
      If NTLM must be supported, is Extended Protection configured?

Details on how to complete these checks can be found at http://go.microsoft.com/fwlink/?LinkId=225699.
Brad
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