600 machines out of 10,000 show client type NULL, while the rest show Advanced. The versions are all the same, but some are apparently not Advanced type. Interestingly, these non-advanced (NULL) machines also show up as non-client machines. I can push advertisements to all 10,000 machines except the 600 non-Advanced client types. I need explanation for Advanced vs not, why they show non-client, and why I can't push to them. probably not ready for a solution yet, just an understanding/description of what I'm seeing on this sccm2007 system I inherited when somebody quit. thanks.