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Certificate Enrollment - The RPC server is unavailable!!

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  • Certificate Enrollment - The RPC server is unavailable!!

    We have installed an Windows 2008 NPS server which will act as a Radius server for our Wireless AP. One of the steps mentioned in the Cisco documentation for configuring 802.1x PEAP is to install a certificate on the NPS server from the root CA. However while trying to install a certificate we are getting the following error message " Failed to install one or more certificates followed by The RPC server is unavailable"
    I have attached the screenshot of the error message. Kindly assist.
    Attached Files

  • #2
    Re: Certificate Enrollment - The RPC server is unavailable!!

    Check your Windows Firewall settings.
    Marcel
    Technical Consultant
    Netherlands
    http://www.phetios.com
    http://blog.nessus.nl

    MCITP(EA, SA), MCSA/E 2003:Security, CCNA, SNAF, DCUCI, CCSA/E/E+ (R60), VCP4/5, NCDA, NCIE - SAN, NCIE - BR, EMCPE
    "No matter how secure, there is always the human factor."

    "Enjoy life today, tomorrow may never come."
    "If you're going through hell, keep going. ~Winston Churchill"

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    • #3
      Re: Certificate Enrollment - The RPC server is unavailable!!

      Originally posted by Dumber View Post
      Check your Windows Firewall settings.
      You mean check the firewall settings on the CA server or the NPS server?
      If I disable Windows firewall on a 2008 server it disables network connectivity completely.
      Regards

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      • #4
        Re: Certificate Enrollment - The RPC server is unavailable!!

        Sounds as if you have IPSEC of some sort implemented
        Tom Jones
        MCT, MCSE (2000:Security & 2003), MCSA:Security & Messaging, MCDBA, MCDST, MCITP(EA, EMA, SA, EDA, ES, CS), MCTS, MCP, Sec+
        PhD, MSc, FIAP, MIITT
        IT Trainer / Consultant
        Ossian Ltd
        Scotland

        ** Remember to give credit where credit is due and leave reputation points where appropriate **

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        • #5
          Re: Certificate Enrollment - The RPC server is unavailable!!

          I even tried disabling firewall on both the CA and the NPS server without any success. We dont have any IPSEC services running on our servers. Any other suggestions?

          Regards

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