Most configuration items on most machines have never been successfully scanned - I have a long row of red Xs down the right hand side, with a few black clocks.
Have tried restarting the service, setting "Scan Every X Days" to 0, deleting computers so they can be picked up from scratch, running lsclient from the workstation; so far no luck.
gpudate /force doesn't appear to be any help with the RPC policy. Connection Tester can reach most of the machines with RPC errors.
I think the problem with applying the GPO may be Network Determination:
http://technet.microsoft.com/en-ca/library/bb878049.aspx
Our DHCP does not hand out a Connection Specific Suffix. I have an RFC in to our MIS to let me add one, but so far it's not in there. Do you think this could be related?
This is a great tool, but I'm only getting it to successfully scan a small portion of our computers.