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What type of connection did you have at your old home?
Is your new home type FTTC?
What is the model of wifi router have you brought from your old home?
Hi @Anas-nust,
Welcome to the community!
For newly installed NBN service, we did an article that you may find helpful.
In the event that you successfully set up the NBN service and still not working you may check if there is an ongoing outage affecting the service. See this link for reference How to Check for NBN Network Outage.
If there's no outage, you may perform basic troubleshooting step available in this article Troubleshooting no internet connection.
In this particular case, we've seen that the installation has completed and the service is now connected to our network.
Should you need further assistance, feel free to search community for help or chat with us at https://www.tpg.com.au/support/contact/ and we'd be glad to assist you.
Regards,