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Unable to Open Ports on NBN - TPG provided modem Archer VR1600v

Level 3

You would need to configure all devices on your LAN on a single subnet in order for port forwarding to work correctly.


- I have 20 devices, I would assume all are on the same subnet - they are all on Default Group - and all within the x.x.1.yyy - yyy range 


Hi @pjelias,


Upon further investigation, it appears that you have the modem configured in 2 different LAN subnets.

  • Subnet 1 appears to be for your home network
  • Subnet 2 appears to be for your security system

Let us know how it goes.