How to get DSD working in a networked (Roon) setup?

I don't use Roon and don't own the 3100 HV, but here's a possible clue from Stereophile:

But to get that to work—to get native DSD data into the box—you'll need to use the USB connection and a data source that can run a Windows 10 driver—at a minimum, a Windows-based computer running Roon Bridge and that driver.

Did you install the T+A driver onto your Windows PC?

So I plunged the deep end and turned my (work) laptop into a audio player. Installed the T+A USB driver, installed Foobar2000, installed the AISO & DSD components, etc. I found the right USB cable, connected my laptop and after some fiddling was able to play DSD files on a USB stick. As the T+A still kept showing PCM as output, I really start to wonder what I'm overlooking :)

Anyway

@yage : I did indeed, it was the part I wanted to avoid as my (gaming) rig is literally on the other side of the house and the only laptop is from work.

@erik_squires : The streaming works, I uploaded a DSD album to Roon and it plays, but with downsampling (Roon literally says "downsampling", so I assume that's what it does).

@bhoage : I'm trying to play DSD256 / DSD128 files so I assume it's downsampling if Roon only plays DSD64 and (ii) literally says "downsampling" in the signal path. I'll remember to make a screenshot from it next time.

@jazzman7 Thank you for your input, going to take a look at such a setup. 

@lordmelton The SACD and DAC part are separated in the unit. It can play up to DSD512 but I didn't manage that yet. Coming close now connecting my laptop to it, but it still moves to DoP.

If you’re using foobar2000, check on the following setting. Go to Preferences -> Tools -> SACD. Under ’Type’ does it show ’DSD’? If not, click on the ’Type’ dropdown and change it.

You can also follow these instructions to output native DSD instead of DoP if the DAC supports that.

Just noticed that in my foobar2000 setup in the Tools -> SACD section, there's a checkbox labeled 'DoP for Converter'. You might also want to try unchecking that to see if you get native DSD output without having to install DSD Transcoder.

Thanks @yage - I'm like 80% convinced I've changed that 10 times to DSD but that it jumps back. I'll pay more attention to it. The "DoP for Converter" is unchecked.