Welcome to TPG Community.
Apologies for the trouble. We'd really like to help fix the issue.
I was able to secure your account using your community name. I've ran a remote line test and this shows no clear evident of physical issue on the line.
I would recommend to have one of our technicians to call you to do real time testing should you be available.
Please let us know your best time and contact number via PM so I can get a technician to call you.