This documentation is archived and is not being maintained.

Client Computer Protection Issues

Updated: August 13, 2010

Applies To: System Center Data Protection Manager 2010

The following table provides troubleshooting guidance on protection issues for client computers.

Client Computer Protection Issues


Issue Possible Cause Solution

Missing recovery points

If a scheduled recovery point creation and a synchronization/consistency check for a client are run concurrently, the recovery point creation is skipped.

To avoid the loss of a recovery point for such clients, schedule an additional recovery point creation at a low usage time so the client computers that miss the recovery point creation have a recovery point created later.

Backups of client computers connected to corporate network through DirectAccess failure with RPC server unavailable error.

Edge traversal is blocked in the firewall settings.

  1. Open the Windows Firewall console (Click Start , click Run, and then type firewall.cpl).

  2. In the left pane, click Advanced settings.

  3. Select Inbound rules, and then scroll down to DPMRA and DPMRA_DCOM_135.

  4. Double-click each rule, and then navigate to the Advanced tab.

  5. In the Edge traversal group item, select Allow edge traversal.

When trying to retrieve information from the Windows Management Instrumentation (WMI) service on <ServerName>, access was denied.

This error can occur when you attempt to add a computer that is running Windows XP SP3 to the DPM server and a Group Policy policy setting is blocking the WMI service on the targeted computer.

To resolve this error, do the following:

  1. On the targeted computer, click Start, click Run, type regedit, and then click OK.

    Serious problems can occur if you modify the registry incorrectly. These problems could require you to reinstall the operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk. Always make sure that you back up the registry before you modify it, and that you know how to restore the registry if a problem occurs.

  2. Navigate to the following registry key, and then delete it:

  3. Restart the targeted computer, and then try to add the targeted computer to the DPM server again.