Welcome to the Community!
Are you still not able to connect to the internet?
If the WiFi is on, are you able to detect your WiFi network?
What troubleshooting have you done so far?
Do you have any computer that is connected via LAN/Ethernet to check if the internet is working?
If yes, you may troubleshoot your WiFi using these articles.
If you need further assistance, please send me a PM with your TPG username or customer ID number.