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.php
We've detected that your modem has been online for more than 6 days now and still counting. The speed is within specification as well.
Feel free to search Community for help with your issue, or contact us and we'd be glad to assist you.