In large enviroments it is not possible to do the installation on the way it is now implemented in UTM 9.
Reason:
Every clients needs to contact the internet to get all the neccesary files.
this means that if you have about 100+ computers that you are installing every computer is downloading about 100mb each from the internet, this means a lot of traffic and it slows down the installation process and the internet.
Solution1:
Build in Update server for internal networks.
Solution2:
Use the Sophos Update Manager (installed on a windows system) for internal clients and add the option to set an secondary update server in the configuration of the UTM v9.
Kind Regards
Rudie Egberink