Welcome to TPG Community!
We were able to locate your account using your community details and have detected a possible fault within the copper network as we've tested the line.
Do you have a handset connected? Who is your Phone provider? Please check the home phone is it has a dial tone or audible noise, since any issues with the phone will affect the internet service.
Once confirmed that there's an issue with your phone connection, then you need to raise this case with your phone provider for further investigation.
If the phone is clear and working properly, let us know and will have this investigated.