Before attempting the troubleshooting steps, we recommend that you do the following below.
If you are still unable to connect to the Internet, you can proceed with the troubleshooting steps indicated on this link: https://www.tpg.com.au/support/problems_connect_internet_fttb_bundle.php.
For WiFi issues, we've created an article that will help you improve your home network.
In this case, we've seen that this issue has been escalated to our Engineering Team for further investigation. Further updates will be provided by one of our Engineers via SMS or Phone call when it becomes available.