Welcome to the Community!
We tried to search for your account to no avail.
We'd like to look into your account for better understanding of the situation and see what's causing the connection dropouts.
Please send me a PM with your TPG username or customer ID number to assist you accordingly.
I had the same problem starting 2 months ago and finally tpg got around to sending an NBN tech. Problem fixed in 5 minutes. It turned out to be corroded connection up the telegraph pole (HFC connection)