Running ZCM agent on Win7/XP machines. When trying to register workstations I am getting registration successful, but zone "could not be determined". I have looked at TID 7005551 and I am seeing the page they mention. Looking at the log on one of the clients that won't register there is an error reading "zone config manager is reporting no user sources" and it disables the login/logout option. Machines that are already successfully registered seem to work just fine.