[ERROR] Failed to connect to WMI Services

I have 2 Win2K3R2 servers in a RG replicating a folder.
I use the following command to make sure the folders are in sync.
====
dfsrdiag backlog /RGName:"Bennett Global Multi-Purpose RG" /rfname:"Global
Folder" /SMem:Bennett2.bennettcompany.com /RMem:BGZFS.bennettgz.com
====
Now I get the following error -
[ERROR] Failed to connect to WMI Services on computer xyz.mydomain.com
How can I fix it or monitor the sync status...? Maybe something go
uninstalled...?

Thanks,
Tom...