Welcome to the Community!
Pulling up your account using your Community details, I've managed to run remote line test and have found no evident line fault that can affect the service.
Furthermore, I can see that the your modem is up and running now. I would recommend to continue monitoring the connection in the meantime.
Should you require further assistance, you may reach out to us again or you may check out our self-help options located here: http://tpg.com.au/support