DHCP data not working

[ndhambi]

I have setup the expoter with system and dhcp enabled, the system metrics are working but there's no dhcp metrics returned. here is the configuration i have set:

devices:

• name: Calmex_WareHouse_router
  address: 193.31.74.55 # Replace with your router's IP
  user: admin
  password: 3vvvvvvvvvv
  port: 8728

  Optional features (check the exporter documentation for more):

  features:
  interfaces: true
  system: true
  bgp: false
  dhcp: true
  firewall: true
  wireless: false

Is there something that i am missing to ensure that the metrics for dhcp are returned?