if I had a JSS 9.91 working on all macs, and I decided to upgrade to 9.93.
everything looks "fine", I check the JSS server "Search Inventory"->under "jamf" I see they have the new version 9.93, a few system that haven't log into the domain they still have version 9.91.
Until the users change their password from "Security & Privacy"->"Change Password..." they get "unable to communicate with the server"
I do see under Users & Groups that is join to the domain.
at the moment the only fix that I could come up is to remove Casper from the client and re-enroll, after doing that it works fine.
I even tried to unbind re-bind manually and that doesn't work.
any help I really appreciated.