New TBT3-UDZ Monitors Issue w MacBookPro

The TBT3-UDZ does not recognize either of my dual monitors or one monitor when connected to MacBook Pro 16". All troubleshooting has been checked - i.e. cables, restart, etc. Neither HDMI port is working. It should be plug and play, but it is not.


Thank you for contacting Plugable support! Sorry to hear about this issue. I’d be more than happy to assist you.

We’ll want to collect some diagnostics to best understand this issue. We have a troubleshooting tool that helps us find out what is going on in situations like this. Please plug the dock with your monitors attached to it into your computer, then go to this page and follow the instructions there:

When you email us with the results, mention ticket 325694.

Please don’t hesitate to let us know of other questions.

Thanks again for contacting Plugable support and best wishes!

Joshua Henry

Senior Engineer | Product Owner
Plugable Technologies

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