When I check the last run of an agent scan history it shows me how many agents were scanned out of the total deployed. However, when we import this data in to Security Center the final number is off by more than a thousand. I have an Asset Group that checks plugin 19506 for Agent Type and reports back the total count. This number is low by over 1,000 compared to the most recent scan.
I'm not even sure where to begin trying to correlate whats missing or why. My initial thought was our IP restrictions in Repositories but I've checked that and it does not seem to be the case.