Welcome to the Community @Lizzymccaffrey
For customers experiencing any issues with their NBN service, we recommend the best thing to do first is check if there's an outage on the NBN network.
We have created this article that can guide you on How to Check for NBN Network Outage
If there are no known outages in your area, customers can proceed with the troubleshooting steps indicated on this link : https://www.tpg.com.au/support/nbn/troubleshooting
Make sure that the setup is correct. You may refer to NBN Fibre To The Premise (NBN FTTP) Setup Guide
We were able to locate your account using your community details and the internet service appears to be working with the new router.
Feel free to search Community for help with your issue, or contact us and we'd be glad to assist you.