I changed the 192.168.42.1 gateway like so:

* Changed hostname to space

* Changed domain to local

* Installed avahi-daemon

* Disabled dnsmasq's dhcp function

* Installed and configured isc-dhcp-server (dnsmasq's dhcp is not for large networks)

* Changed DNS servers from google's to sonic.net's

* Expanded the subnet to /16

* Changed/expanded dhcp range to 192.168.50.1-192.168.200.254

* Lowered dhcp lease time to 600 second (1200 max)

I removed a rogue dhcp server that was running on the network (we really need a script to detect these).