Thanks. I have asked them and so far they have been no help. I will keep trying.
Perhaps it should be your son asking. Our daughter was half an ocean away from us, which made my helping out quite difficult. I told her what she needed to do - where to start and what to ask but from there she was on her own. She had the credit card and knew the rules (contact us for any single item over $100). Your son could also find someone in his field with a similar computer who is successfully connected to the system and find out what they’re using. His new friend could help him set it up as well.
I find the IT guys are a lot more helpful with a direct discussion with the individual with the problem, not using a go-between.
Be sure he has a firewall on his computer then and turned on because his machine will be wide open if he doesn’t.
Personally I’d get a wireless router hack it to turn on the other channels not on in the US and then use that channel because you know there’s going to be all kinds of users on the trash band. Plus it will keep down on wireless snoopers unless they also hacked their wireless to open the other channels.
I’d also like to know how they know if you’re doing NAT. It may be possible to hide the fact that he’s NATing. You could get a cheap PC and use that as your wireless NAT. Hook it up to the LAN and then share out the WIFI NATing the connection. This way the school sees a computer getting the IP address and they are happy. However, if the firewall is on either device I’m not sure how they could tell 100% what the device it is if you are masking the device from the LAN. I guess the DHCP request could reveal some info but that can be spoofed to look like you want it to.