Telstra NBN
Top two lines are Telstra NBN, the remainder are ADSL

But the Cobra doesn’t support a phone line, so I figured I’d get rid of the filter and just have a straight, clean cable from it to the wall socket. I’m guessing it was that change which increased the download speed by around 0.3Mbps, and the upload speed by around 0.9Mbps.

One reason I think it was the filter is a few years ago I noticed that my speeds were slowing. They had drooped to perhaps 3Mbps download. At some point while investigating that I replaced the ADSL filter with a newer one from one of the several modems Telstra had sent me over the years. And that returned speeds to close to 6Mbps.

If you have speed or connection troubles, one step might be to consider replacing the ADSL/VDSL filter. Or even dispensing with it entirely if you don’t have a landline.


So, remember, yesterday I was getting around 6.1Mbps download, 1.8Mbps upload and a latency of 18ms. (Latency is kind of the response time.)

This morning on my Telstra NBN connection I’m getting around 48Mbps download, between 25 and 42Mbps upload and a latency of 6ms.

That means, eight times faster download, at least thirteen times faster upload and only one third of the delay in interactions. All that is subject to bottlenecks elsewhere, but no longer is my connection to the Internet the slowest link.

The most obvious and day-to-day difference with Telstra NBN vs ADSL is in Microsoft OneDrive. It syncs my working folders, phone photos and several other things between a number of different devices, plus the cloud. Often I’d come home having taken a bunch of photos on the phone and the Internet would slow to a crawl while all the photos were backed up to the cloud, then sent back down to sync to my other devices. Now? It’s fast and produces no noticeable impact on Internet performance.

Telstra NBN
Netflix reports 15.25Mbps — on two TVs at a time!

YouTube: 1080p video now snaps into full resolution almost instantly. I can jump to any point in a 1080p YouTube video and there’s never a delay of more than some fraction of a second. No more of that dreaded “loading” animation.

Netflix: I searched on my TV for something in UHD on Netflix and started it playing. The TV went almost instantly to 2160p resolution and 11Mbps, kicking up after a few seconds to 15.25Mbps. That seems to be where 4K Netflix tops out. So I went in the house and fired up Netflix on another TV. It took about thirty seconds to work its way up to 15.25Mbps, but both UltraHD streams progressed perfectly.


So, yes, the NBN works. High speed Telstra NBN Internet works. I just regret that, thanks to Messrs Rudd and Conroy, it took so many years for fast Internet to arrive.

* See, for example, here, here, here, here, here, here, here, here, and here.