This article applies to:

• Acronis Backup & Recovery 10 Workstation
• Acronis Backup & Recovery 10 Advanced Workstation
• Acronis Backup & Recovery 10 Server for Windows
• Acronis Backup & Recovery 10 Advanced Server
• Acronis Backup & Recovery 10 Advanced Server - Small Business Server Edition
• Acronis Backup & Recovery 10 Advanced Server - Virtual Edition

Symptoms

1. You are trying to connect to Acronis Agent on a remote machine from Acronis Backup & Recovery 10 Management Console OR you start Acronis Backup & Recovery 10 (Standalone) on a machine.
2. The connection attempt fails with one of the following error messages:

   An invalid index has been specified.

   

   or

   Failed to retrieve parameter 'Windows name'.

   

Cause

Acronis Backup & Recovery 10 could not get the information about network interfaces on the machine by means of the WMI.

One of the symptoms of that is the absence of the information about NICs in Windows System Information File:

• Start -> Run -> msinfo32 -> System Summary -> Components -> Network -> Adapter

Acronis Backup & Recovery 10 needs this information to establish a connection.

There can be several causes for the absence of the information about NICs in Windows System Information File:

1. The machine with Acronis Agent to which you are trying to connect has corrupted WMI repository.

2. There is Broadcom Advanced Control Suite (BACS) or Broadcom ASF Management Applications installed on the machine with Acronis Agent, which adds its own set of classes to the WMI and may fence off the standard Windows queries.

Solution

1. Diagnose and troubleshoot WMI issues on the machine with the Acronis Agent. See:

• Microsoft Download Center: WMI Diagnosis Utility;
• Microsoft MSDN Library: WMI Troubleshooting

In the last resort, you may refer to the following web page describing the process of rebuilding WMI repository:

• Repairing and re-registering the WMI

2. If the machine has Broadcom Advanced Control Suite (BACS) or Broadcom ASF Management Applications installed, try uninstalling it, reboot the machine and see if it resolves the problem.

If uninstalling BACS does not resolve the problem, try to delete the following classes using the WMI tester dialog box:

• BRCM_3rdPartyNetworkAdapter
• BRCM_NetworkAdapter
• BRCM_VirtualNetworkAdapter

3. Reinstall or repair Acronis Backup & Recovery 10 Agent for Windows and reboot the machine.

More information

Fee free to contact Acronis Support referencing this article if you have further questions or need assistance.