For customers experiencing connection issues with their service, we recommend the best thing to do first is check if there's an outage.
If there are no known outages in your area, you can proceed with the troubleshooting steps indicated on this link:
We've detected that your internet is now working. 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
Note: We have modified your post for your privacy and security of the account as it has your TPG account info.