I submitted a problem to eos@etcconnect.com as per this post but 36 hours later I have received no response so I'm trying this avenue to see if it works better.
During the boot sequence, there is about a 30 second delay while Ion waits to boot from a network device. Our setup is such that it is highly unlikely there will ever be a network device from which to boot. I know I can press 'Esc' to skip the wait but this is a nuisance. Our older Ion does not behave this way so I assume it's buried in the BIOS somewhere.
How can I change the boot settings to remove that boot option?