Extended Desktop sometimes works for all monitors, sometimes only mirroring...

I have the Plugable USB-C Docking Station for three displays. Model UD-ULTCDL. It is connected to a MacBook Pro. Having trouble with it extending desktop to all three monitors. 1. MacBook Pro Built In Monitor. 2. Samsung LED via HDMI. 3. Samsung LED via HDMI. Sometimes extended desktop to all three is fine. Othertimes, after I disconnect, only MacBook Pro and first Samsung are extended with the third, Samsung Display, mirroring the other Samsung. Any ideas on fix?

Hello Mike,

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

When this happens where it is not extending properly, what steps do you need to take to correct it? Unplug and replug the USB-C cable? Or a full power cycle of the dock, etc? Other?

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

Thanks again for contacting Plugable support and best wishes!

Joshua Henry
Plugable Technologies

Hi Mike,

Please contact us at support@plugable.com if you need further assistance.