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Dell Command | Monitor Version 9.1 User's Guide

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Unable to remotely connect to Windows Management Instrumentation

If Common Information Model (CIM) information for a remote client computer system is not available to the management application or if a remote BIOS update that uses Distributed Component Object Model (DCOM) fails, the following error messages are displayed:
  • Access Denied
  • Win32:RPC server is unavailable
  1. Verify that the client system is connected to the network. Type the following in the command prompt of the server: ping <Host Name or IP Address> and press <Enter>.
  2. Perform the following step if both the server and the client system are in the same domain:
    • Verify that the domain administrator account has Administrator privileges for both systems.
    Perform the following step if both the server and the client system are in a workgroup (not in the same domain):
    • Make sure that the server is running on the latest Windows Server.
    • NOTE: Back up your system data files before changing the registry. Editing the registry incorrectly may render your operating system unusable.
  3. Edit the registry change on the client system. Click Start > Run , then type regedit, and then click OK. In the Registry Editor window, browse to My Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa.
  4. Set the forceguest value to 0 (default value is 1). Unless you modify this value, the user remotely connecting to the system will have guest privileges, even if the supplied credentials provide Administrator privileges.
    1. Create an account on the client system with the same user name and password, as an administrator account on the system running the WMI management application.
    2. If you are using IT Assistant, run the IT Assistant ConfigServices utility ( configservices.exe in the /bin directory under the IT Assistant installation directory). Configure IT Assistant to run under a local administrator account, which is also now an administrator on the remote client. Also, verify that DCOM and CIM are enabled.
    3. If you are using IT Assistant, use the administrator account to configure subnet discovery for the client system. Enter the user name as < client machine name>\< account name>. If the system has already been discovered, remove the system from the list of discovered systems, configure subnet discovery for it, and then rediscover it.
    • NOTE: Dell recommends using Dell OpenManage Essentials as replacement for IT Assistant. For more information on Dell OpenManage Essentials see, dell.com/dellclientcommandsuitemanuals.
  5. Perform the following steps to modify user privilege levels for connecting remotely to a system’s WMI:
    1. Click Start > Run , type compmgmt.msc, and then click OK.
    2. Browse to WMI Control under Services and Applications.
    3. Right-click WMI Control, and then click Properties.
    4. Click the Security tab and select DCIM/SYSMAN under the Root tree.
    5. Click Security.
    6. Select the specific group or user that you want to control access and use the Allow or Deny check box to configure the permissions.
  6. Perform the following steps to connect to a WMI ( root\DCIM/SYSMAN) on a system from a remote system using WMI CIM Studio:
    1. Install WMI tools along with wbemtest on the local system, and then install Dell Command | Monitor on the remote system.
    2. Configure the firewall on the system for WMI remote connectivity. For example, open the TCP ports 135 and 445 in Windows firewall.
    3. Set the Local Security setting to Classic - local users authenticate as themselves for Network access: Sharing and security model for local accounts in the Local Security Policy.
    4. Connect to the WMI ( root\DCIM/SYSMAN) on the local system from a remote system using WMI wbemtest. For example, \\[Target remote system IP Address]\root\DCIM/SYSMAN
    5. Enter the Administrator credentials of the target remote system if prompted.
    For more information on WMI, see the applicable Microsoft documentation at msdn.microsoft.com.

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