Audio / Headphone Jack Not Working; Dock Not Recognized as a Sound Playback Device

I just set up my new UD-3900, and everything seems to be working swimmingly but for the audio. Plugging my headphones into the headphone jack on the Dock, I get no sound - plugging the same headphones into my laptop’s audio jack works just fine, as normal. (I tested with Netflix and Youtube.)

For what it’s worth, I’m working on a Toshiba Satellite S855, Windows 10.

I looked into other similar problems on your forums here, and it looks like (at least part of) my problem might be that the Dock doesn’t show up in my list of Playback devices in the Sound Control Panel. It isn’t hidden or disabled - it just doesn’t show up:


Any ideas on what I might do to get my computer to recognize the Dock as a USB Playback Device / make the Dock realize it’s a USB Playback Device? Is there a driver or something I could install in addition to whatever was on the included CD?

Thanks very much!

Whelp, I fixed it! Or perhaps it fixed itself, as is so often the case with these things.

In case what I did mattered and anyone else has this happen to them:

First, I turned off my laptop, waited for it to power down, then power cycled (unplugged, waited 10 seconds, and replugged) the Dock. I also moved the USB to another port on my laptop, since I discovered that initially, I had the Dock plugged into the one USB port on my laptop that isn’t 3.0… why is it even there!? Despite all this, when I powered everything back up, I discovered I hadn’t solved the problem - the Dock still wasn’t showing up as a Playback Device.

So next I went to and downloaded the latest drivers for my system (Windows 10). I ran the .exe and let it reboot my laptop. Though it claimed it was only installing graphics drivers, I figured it couldn’t hurt. And indeed, this time, after a slow reboot, when I checked my Playback Devices - there it was!


I’m not sure if any of what I did was actually what solved the problem, but if this problem occurs on your system, I’d recommend following the same steps I did. They certainly couldn’t hurt.

And be sure you plug that bad boy into a USB 3.0 port… Remember, they’re the ones with the blue plastic! :wink:

Hi Andrew, thanks for posting! Glad to see that you were able to get our dock working as a Playback Device! Reinstalling the drivers is a quick way to make sure that the software is in a good state and it looks like the audio portion may have been incomplete during initial installation. Thank you for posting your results and sharing the steps you took to resolve this issue!

If you have any additional questions please let us know and we will be happy to help!

Thank you,

David W.
Plugable Technologies