Been a little curious about this, but haven't gotten around to trying it yet, but can you simply enable DHCP and make reservations for the CRIO MAC address (and camera(s) if needed)?
Seems like an even nicer solution than the batch/script files (which are a huge improvement over manually switching). The only downside is lost learning opportunity for the kids doing it.
Save the router config once you do it, and reload the config after each match
