Re: It is not the copper wiring
Try being stuck on Fixed Wireless. I am in Albury where the entire region is serviced by a single tower. And is so oversubscribed and under provisioned by NBNCo that you're lucky to get 3Mbps during peak times. It's not always the ISP with the bandwidth problem.
NBNCo in my case know about the issue but have lumped it into the "too-hard" basket and refuse to fix