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Hi @dillaminc
Welcome to the Community!
If it's the TP-Link VR2100 and is marked as VDSL/ADSL modem/router, then it is compatible with your FTTB service.
Make sure that you set the VLAN ID to 2 and configure it with the correct PPPoE username and password (TPG account).
Let us know if you need further assistance.
BasilDV