Hi to all.

Changed my MacBookPro for a 15" XPS 9560. My external audio interface is a Focusrite Saphire 56 with fire wire. After searching many forums, I found using a couple of Apple aptators Thunderbolt 3 >Thunderbolt 2 > Fire 800 I managed to get my audio interface working.

Problem 1. It works when connecting to my XPS TB3 (USB-C) port. If I connect to my TB16 dock it does not work. I upgraded the firmware for both my dock and my XPS. I thought might be to do with using apple cables, so I spent $400 and buying a USB audio interface. Installed and connects to my XPS it works fine. If I connect to the USB in my Dock it does not work.

With both the Thunder bolt and the USB I get the sound when I plug in but it does not connect. Its like the Thunderbolt between the XPS and the Dock does not support Audio.

Any ideas? Does anyone successfully have an external sound card on the Dell thunderbolt docking station?

Equipment:

Dell XPS 15" 9560. 1tb, 32gb, Win 10 64bit.

Dell TB16 Dock,

Focusrite Saffire 56pro Firewire audio interface.

Focusrite Saffire  io 20 Gen2 USB audio interface.

All drivers and firmware are updated.

Many thanks in advance.