Sorry to resurrect an old post, but I'm having the same issue. I have changed the permission sets so Group Admin has view and change permissions for all HIPS options. (I presume Group Admin encapsulates the 'admin' login). But I'm not getting any of the firewall events to go to ePO to then create rules. I also setup another user for myself and gave it permissions, similarly no reporting is being forwarded. Did you ever get this resolved or am I missing something. I'm currently testing HIPS on a small set of computers on our network, but struggling a lot and using this forum quite intensively to solve issues. The does seem to be a lack of documentation, specifically for implementing HIPS of ePO 4.5.
Hope you can help.