Try on a mobile hotspot, or un-restricted internet connection to see if
it's your corporate network or not. Also if your jamf instance is
on-prem it could be a certificate issue.
It specifically addresses AD issues: macOS Mojave 10.14.3 UpdateThis
update improves the security, stability, and compatibility of your Mac
and includes the following enterprise content: When making a
file-sharing connection that uses a valid Kerbero...