IN process of transition from e2k3 fe/be config to e2k7. When i replace FE services with a CAS server activesync on devices on e2k3 does not work. the device just keeps asking for the user password. Does anyone have this working? I"m seeing event ID 1036 source MSExchange ACtivesync..basically saying it can't authenticate back to the 2k3 BE cluster, however all the permissions are correct for anything on the KB referencing event 1036.