@Flypell  it's strange that the Thunderbolt controller is showing in this case since the DA200 just uses regular USB-C, not Thunderbolt.  But the DA200 should definitely be plug and play, with no special drivers required.  Even the drivers for its Ethernet controller are built into Windows.  So if you can't even get basic USB flash drives working through the adapter, it's either a problem with the adapter or the USB-C port on the system.  If you have another system you can test with the DA200 or a way to plug a flash drive directly into the USB-C port (using a basic USB-C to USB-A dongle, for example) that would help isolate the culprit here.

Hi @jphughan ,

Thank you for your interest in my post and quick reply.

I forgot to mention that my DA200 Hub was working just fine (USB + VGA + RJ45) two days ago while I was still running on Windows 10 Entreprise.

I just switched to Windows 10 PRO, and all of a sudden the DA200 is not working anymore, not even the RJ45 port.

I don't have any other system to test the DA200 with atm. Nor do i have an other USB-C dongle.
As far as I am concern, it's a software problem, not a hardware one.

Do you have any other suggestion?

@Flypell  changing an OS edition by itself wouldn't create a problem.  I've used a DA200 on multiple editions of Windows 10 and have never had a problem.  All editions of Windows 10 use the exact same kernel, drivers, and patches.  It's just a different feature set that's available.  If you open Device Manager while the DA200 is connected, do you see any device categories already expanded and containing devices that have an error condition?  Do the sounds that normally play when connecting or disconnecting a device play when you connect/disconnect the DA200?

@jphughan ,

I solved the Code 10 issue by installing the latest "Intel-Rapid-Storage-Technology-Driver-and-Management" driver for my XPS 13 9350. There is no more error on any equipment in the device manager (active or hidden).

However, this doesn't solve my DA200 connectivity issue.
Still no sound.
"Intel(R) USB 3.1 eXtensible Host Controller - 1.10 (Microsoft)" stays inactive

@Flypell  an AHCI controller would affect how your system interfaces with internal storage, not USB devices.  However, that may be a symptom of an underlying cause that would also affect the ability to use USB devices, such as missing Intel chipset drivers or something.

@jphughan ,

Under "IDE ATA/ATAPI controllers", I have a Code 10 error "An I/O adapter hardware error has occured" for my Standard SATA AHCI Controller. While going numerous time to the device manager checking under Universal Serial Bus category, I did not notice the above error... I will look for a way to solve this problem, posting back when done.

The system does not play the song when I plug/unplug the DA200 anymore.

@Flypell  there are devices other than the DA200 that can have a USB controller built into them, so the fact that a particular instance of a disconnected device remains disconnected doesn't necessarily mean that that particular device SHOULD show as connected when the DA200 is plugged in.  However, if the system isn't playing a sound or otherwise giving any indication of detecting any of the devices integrated into the DA200, then as I said originally, my first pair of tests would be to try the DA200 on another system and try another USB-C device (or USB-A device through a USB-C to USB-A dongle) with that system's USB-C port.  Based on your note that it worked on this system before, it would seem that there's either some issue with your current OS setup, or the DA200 just happened to die, or a hardware issue just happened to pop up with the XPS 13.  The last two are of course somewhat unlikely, but then again so is the DA200 completely failing to be detected if your system has its full set of drivers already installed.  As a somewhat long shot suggestion, have you tried downloading and using Dell Update just to make sure everything is current and that nothing is missing (or manually going through the individual downloads available on support.dell.com if you prefer)?

@jphughan ,

According to "Dell SupportAssist", my PC is up to date on all the drivers.

OS Setup : Possible. Already reinstalled Windows 10 PRO twice. Might try to install Windows 7 just for a try.
DA200 just happened to die : Unlikely, worked two days ago. I guess I'll have to find an other system to try the Hub on.
Hardware issue just happened to pop up with the XPS 13 : I find that unlikely but plausible. Might buy a new USB-C dongle to try on my machine. 

Posting back when I've done these trials.
Thank you for the support.

Hi @jphughan ,

I just tried with a HP USB-C Universal Dock and it's working just fine on my XPS 13 - 9350.
It's strange that HP equipment is more comptatible with DELL PC than DELL equipment is... 

I give up on the DA200 for now.

Thank you for your support,
Wish you a pleasant day

@Flypell  the HP Universal Dock lineup, like the Dell Universal Dock lineup (model names Dxxxx, e.g. D6000, D3100) use DisplayLink "indirect display" technology rather than tapping into the native GPU output available on a USB-C port via DisplayPort Alt Mode (which can be switched by the adapter to HDMI using a converter chip).  DisplayLink works in a fundamentally different way, basically transmitting video as garden variety USB data.  It's convenient because it's so universal (provided your system has the DisplayLink software installed), since you no longer require a USB-C port with video output capabilities (which are optional), or even a USB-C port at all since the dock can operate over USB-A (albeit without system charging), but the way DisplayLink works also introduces some drawbacks that I've written about in detail in the post marked as the answer in this thread.

In any case, the Universal Dock still confirms that USB data is working from your XPS 13's USB-C port, even if it doesn't test the port's native video output capability.  But unless you get the DA200 working on another system, I wouldn't immediately say that HP's equipment is more compatible with Dell systems than Dell's own products, because the DA200 does work on an XPS 13 9350 -- I've got both of those products sitting here in front of me as I write this.