After upgrading to Windows 8.1, you may find your Windows Home Server dashboard no longer works. The solution for me was:

  1. Uninstall the connector.
  2. Open a command prompt and run ipconfig /flushdns.
  3. Reinstall the connector by going to http://[WHSname]/connect.

However, in my case I would get an error “Cannot connect the computer to the server because either another software installation is in progress or, the computer has a restart pending….”
Try restarting. If that doesn't solve the problem, a registry key needs to be deleted.

  1. Open regedit.exe.
  2. Navigate to
    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager
  3. Delete the key PendingFileRenameOperations