I have had my UD-3900H for just over a year (purchased 5/21/2019 on Amazon). From the beginning, It has performed very well.
It is connected to a USB 3.0 port on my Dell Precision 3520 Laptop – running Windows 10 1803. I have a number of USB devices connected (e.g., Corsair gaming keyboard & mouse, and Corsair USB wireless headphones), a 55" 4K TCL TV attached via HDMI as my primary monitor and a wired Ethernet connection to my router.
A few times (3? 4?) in the last few months, Windows seems to lose visibility of the DisplayLink controller and 4K monitor. Until this morning, it has always recovered after a couple of minutes of wildly switching from the 4K monitor to the internal laptop screen, resizing and rearranging all my open windows and then, without any explanation, returning everything to the way it was before the madness started. This happened last night in the middle of an Zoom meeting with a potential employer. Imagine my horror! Thankfully, all was well after a couple of minute.
This morning, it happened again in the midst of a Microsoft Teams meeting with a teammate. This time, I lost the DisplayLink adapter AND the Ethernet adapter. After a couple of hours uinstalling and reinstalling drivers, powering devices off and back on, running DisplayLInk Cleaner per direction found elsewhere in this forum and, generally, banging my head against the wall, it looks like I’ve lost my DisplayLink and Ethernet ports permanently.
All the other USB devices are working as expected.
I work from home and due to vision problems, working on a 13" laptop screen is simply not an option. The Plugable UD-3900H was a godsend and now I can’t live – or work – without it.
Can anyone offer any advice here???