Hello, have you tried configuring your modem manually? Connect your modem, go to 192.168.1.1 (type it in your browser address bar, the login details should be at the bottom of your modem, usually ‘admin’ for both the username and password) and go to the advanced tab. Choose ‘Network’ and then ‘DSL’ and then click edit on ‘pppoe_ptm_2_0_d’, the details you have to configure is: Username: <TPG username>
Password: <your TPG Password>
Protocol / Encapsulation / Connection Type: PPPoE (sometimes,
you'll have PPPoE LLC)
VLAN ID: 2
I hope it works for you, it didn’t work for me because I had a fault in my line, but I hope you could try it out just in case it’s because your modem wasn’t automatically configured!