I am using a MIni-PC to get the asg-9.706-9.1.iso image loaded from a flash drive ,the mini -PC wont see it on boot , I tried PFsense / opensense and untangeled , all boot from the stick on the same PC just fine and install, any idea what I am doing wrong…

I am using Sophos UTM 9.707-5 Home Edition. I added TP Link NIC but Sophos UTM is not detecting NIC Card. Realtek and Broadcom NIC working fine.