Comment 20 for bug 1490578

I see that etc/astute.yaml on all nodes has only one range
  L3:
        nameservers: []
        subnet: 10.109.11.0/24
        floating:
        - 10.109.11.128:10.109.11.254
        gateway: 10.109.11.1
        enable_dhcp: false

that is way you got only one range

looks like the problem on nailgun side or network config with multiple floating ranges was no uploaded correctly