Welcome to the Community!
I'm not familiar with the specific brand or model you provided but the settings you'll need are the following:
We suggest checking with the manufacturer if your device has VLAN tagging or if it's specifically compatible for NBN-HFC.
In addition, your homephone service won't work if you use a 3rd party device.
How to use a 3rd party router with TPG NBN over HFC:
(The following settings was adapted from https://forums.whirlpool.net.au/archive/2758953 )
1) Setup => Basic Setup => WAN connection type: (see pic.1)
1a) Connection type = PPPoE
1b) Username & password are your normal TPG credentials:
1c) Save settings
2) Setup => VLANs: (pic. 2)
2a) On the column labelled 'Port', check the box to enable Tagging on port 'W'.
2b) Save settings
Next, reboot router.
Now everything should work beautifully. Cheers.