Audio output on TBT3-UDZ not discovered by windows

I’m using the TBT3-UDZ connected to a Windows 11 laptop. I have two displays connected with DisplayPort, Ethernet, and a couple of USB devices. Everything works with the exception of the audio output jack. It is not listed in the available audio devices. I see the Realtek audio from the laptop and it’s headphone jack. I see both displays as audio devices. Only one of the displays outputs audio and the audio jack doesn’t work at all. I have updated the firmware on the dock. I have everything updated on Windows 11. I have tried all the suggestions of disconnecting, powering down the dock, rebooting etc. Nothing seem to make that audio output port show up in the list of audio devices. I’m not real concerned about the one display’s audio not working. I really wanted to use that audio port to connect external speakers. Any suggestions?

Hi Brice,

Thank you for posting! I am sorry things are not working fully as expected while using your Plugable TBT3-UDZ docking station, and I would be happy to help.

Thank you as well for the detail that you have already provided and for the troubleshooting that you have already performed, it is all much appreciated.

Based on your description of the behavior, our next step is to get some additional information.

Can you please send an email to our direct support email address → with ‘For ticket #- 417882’ in the subject line that contains the following information?:

  1. The Amazon Order ID number for your TBT3-UDZ purchase (which is available from → )

  2. While the TBT3-UDZ is connected to your computer and all of the external devices are connected to the dock (even if one of the devices is not working as expected), the output of our diagnostic utility PlugDebug →

This information will help us to determine the next steps.

*** Please do not post the information we requested above here in our public forum (it contains personally identifiable information) ***

Apologies for the frustration, and thank you for giving us the chance to help!

Plugable Technologies

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