Hi @ajccoach
Welcome to the Community!
The modem/router that you need to look for your TPG FTTB service is a VDSL modem/router. The D-Link AX1500 is a router only device, which will not work directly with TPG FTTB.
You can still use the D-Link along with your TPG provided modem/router. You may set it up as an access point to boost or extend your WiFi network.
Note: If you are going to use a third party VDSL modem/router, the bundled VoIP will not work as the TPG provided modem/router has a special firmware for it to work.
BasilDV
