The com up ass not scanned with the "The RPC server is unavailable 0x800706BA"-error. I have the same GPO's on all computers that I try so scann and they are turned on when the scann is scedduled.. I have shecked, the steps on the link belov.
http://www.s-code.com/kayako/index.php?_m=knowledgebase&_a=viewarticle&kbarticleid=14