A recent discovery (thank you Frank) of Intel Proset that may impact your ability to wireless manage your vPro systems. While I realize this may impact a very small group of folks I still believe it's valueable to post out. Here's the issue if you have users log out of their notebook system and leave it powered on windows, while utilizing Intel Proset you may loose control of the machine for vPro management.
Need to be sure this box is checked. It’s part of the properties for the wireless profile. Note, Microsoft Zero Configuration has this set by default. Hopefully this helps if you run into this problem.