Had a technician re-image 200 workstations without preparing the image properly before upload (zac fsg -d etc). All workstations now show unmanaged unregistered in client (ZCM 10.3), however they obviously still exist in ZCM database as registered workstations, no contact with server since prior to imaging. How do I re-register without touching every machine? Have tried zac reg https:x.x.x.x:443, says the workstaion is already registered in the zone. Tried zac unregister, say the workstation is not registered to the zone. Tried zac rereg, that said already registered to the zone. What is the proper process to correct this?