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Old 12-05-2020, 12:33 PM   #1
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Join Date: Dec 2020
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Default Wavlink WL-UG39DK7 disconnect displays after 30 seconds

I have a WL-UG39DK7 dock and when I connect it to my PC (Windows 10 20H2), the display link driver disconnects after 30 seconds, and therefore I stop seeing my secondary screens. The system emits the typical windows sound of when a device is disconnected, and in the device manager you can see how the graphic adapter "USB3.0 5K Graphic Docking" disappears after 30 seconds. The rest of the ports of the dock (ethernet, usb, etc.) continue working correctly.

I have tried with a second PC but the result is the same. Any idea what it could be?

PS: attached video of the problem and logs of displaylink support tool

Thanks a lot.
Attached Files
File Type: zip Video-wavlink.zip (9.62 MB, 1 views)
File Type: zip DL_Windows_Logs_20201205_132221.zip (2.53 MB, 1 views)
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Old 12-09-2020, 01:02 PM   #2
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Join Date: Jan 2020
Location: Katowice, Poland
Posts: 269

Hello borjita,

Thank you for reaching out to us here on the forum.

Based on your log files I see a potential issue in the USB connection as after the connection is set the docking stations gets a various USB errors that thwarts the connection.

May you please verify the below steps and let me know about the outcome?
  • Plug the dock into a different USB port - This will confirm that there is not an issue with the original USB port
  • Inspect the USB Up-Link port on the dock for damage - This could cause connectivity issues
  • Replace the USB cable connected to the dock and computer - This will confirm that there isn't an issue with the cable
  • Plug the dock into a USB 2.0 port or a USB 2.0 extension cable to force the dock to enumerate down to USB 2.0 mode - This will confirm if there is an issue on the USB 3.0 path
  • Does the device behave the same when plugged into another computer? - This will confirm if the issue lays with the original computer or dock.
  • Ensure all drivers are up to date.

Here is the newest DL driver, please update it also as you are using an older one: https://www.displaylink.com/downloads/file?id=1649

Kind regards,
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Old 10-08-2021, 10:44 AM   #3
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Join Date: Oct 2021
Posts: 1

I also have the exact same problems.
It is often impossible to use it especially for work, disconnections are sudden and very frequent.
I have a Wavlink WL-UG39PD1 and 3 different laptops but only with one of these that I use for work ie Windows 10 64 bit Enterprise I have the problem. On the other two, namely Lenovo chromebook with usb type C and HP Chromebook with type A it works without glitches.
So far I have tried to:
change cables, change ports, uninstall and re-install DisplayLink and Wavlink manufacturer drivers in administrator mode (they are identical), change power management settings, update laptop and docking firmware, airplane mode,
I also tried to power the laptop separately but the problem is still there.
What else can I try? It doesn't seem like a hardware problem.
ggbit is offline   Reply With Quote

disconnect, wavlink

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