Thank you for being a part of the TPG Community.
For verification purposes can you please send me a private message (PM) by clicking on my name and provide the following information:
I will reply ASAP on receipt of the above.
My TPG app for IOS and Android - https://www.tpg.com.au/download
If you are using the same device (d-link ax1500), then it will not work with the NBN FTTB/TPG FTTB service as it requires a VDSL modem/router.
The d-link ax1500 is a router only device. You may read the manual that comes with it or contact their support for further information.