Maybe an oversight by Apple or maybe intentional. NAS is my unraid server.   The closest supported server type I found was macpro-2019-rackmount so I customize the smb.service with the following script: cp -u /etc/avahi/services/smb.service /etc/avahi/services/smb.service.disabled cp /boot/extras/avahi/smb.service /etc/avahi/services/ chmod 644 /etc/avahi/services/smb.service touch /etc/avahi/services/smb.service.disabled Where /boot/extras/avahi/smb.service looks lik