I recently upgraded from SCCM SP1 to SCCM SP2 (note: no R2/R3). Everything appeared to go peachy keen, except now a bunch of my clients that used to report fine are not reporting back. The SCCM server ...

I've just started using System Center and am a bit of a noob at reporting. We've been asked to deploy a package to 640 users ... but have only been given their user identifiers, not the machines they ...