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Unable to Access Cisco Unity Server Windows Remote Desktop Connection

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   Document ID: 112012

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Unable to Access Cisco Unity Server Windows Remote Desktop Connection
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Contents

Introduction
Prerequisites
      Requirements
      Components Used
      Conventions
Problem

      Solution 1
      Solution 2
Problem
      Solution
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Introduction

This document describes how to resolve the Cisco Unity access issue through windows Remote Desktop Connection (RDP).

Prerequisites

Requirements

Cisco recommends that you have knowledge of these topics:

  • Cisco Unity 4.x later

Components Used

The information in this document is based on the Cisco Unity 4.x and later.

The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command.

Conventions

Refer to Cisco Technical Tips Conventions for more information on document conventions.

Problem

You are unable to access Cisco Unity Server through windows Remote Desktop Connection.

Solution 1

Complete these steps:

  1. On the Cisco Unity Server, right-click My Computer and choose Properties. In the System properties window, go to theRemote tab.

  2. In System Properties > Remote > Remote Desktop, ensure that the Allow users to connect remotely to this computer option is checked.

    unity-rdp-01.gif

Solution 2

This issue can also occur due the Browser service, which gets locked up during the logging process. The Browser service maintains a list of computers on the network and supplies this list to Computers designated as browsers. The Browser service follows a certain election procedure that ensures that the "important" computers (i.e domain controllers or servers vs workstations) are always elected first as browsers for the network where they reside. This service should be stopped if you do not want the computer to ever attempt to be a browser for its network segment

Complete these steps in order to resolve the issue:

  1. On the Cisco Unity server, choose Start > Settings > Control Panel > Administrative Tools > Services.

  2. Right-click on the Computer Browser service and choose Properties. In the General tab, change the Startup type to Manual. Click OK.

  3. Right-click on the the Server service and choose Properties. In the General tab, change the Startup type to Manual. Click OK.

  4. Right-click on the the Workstation service and choose Properties. In the General tab, change the Startup type to Automatic. Click OK.

  5. Reboot the computer.

Problem

When RDP is used to connect to Cisco Unity, this error message appears:

RDP protocol component data encryption detected an error, cannot connect

Solution

Complete these steps in order to resolve this issue:

  1. Start Registry Editor.

  2. Locate and then click this registry subkey: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\TermService\Parameters

  3. Under this registry subkey, delete these values:

    • Certificate

    • X509 Certificate

    • X509 Certificate ID

  4. Quit Registry Editor and restart the server.

    Refer to "The RDP Protocol Component "DATA ENCRYPTION" Detected an Error..." error message leavingcisco.com for more information.

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Updated: Jan 18, 2011Document ID: 112012