Welcome to the community!
If you're having issues with 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 you may perform basic troubleshooting, we did an article that you may find helpful see this link below.
Troubleshooting no internet connection
In this particular case, we've seen that the service is 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.
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Welcome to the Community!
I checked your account using your community details as a reference, but it seems like the main reason why your modem is having difficulty with authentication is due to an ongoing outage. From what I can tell, you have spoken to our Helpdesk Team earlier who have already advised you of the same.
The outage started yesterday (Wednesday 13 March 2019, 4:00 PM AEDST) while the current Estimated Time of Restoration is Friday 15 March 2019, 7:00 AM AEDST. Please be advised that the ETR is subject to change depending on further assessment. For updates regarding the outage, you can visit this link: http://tpg.com.au/servicestatus.
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