Monitors come on and off, accompanied by usb up dow beeps

Lenovo Legion laptop, this dock used to work fine with 3 monitors attached, all same monitor type.

Now it does continuous registering of screen then a screen will drop off and then another come on, etc.

Continuous USB “insert” and “remove” beep sounds. Have not been using during covid, and this behavior exactly same on surface pro unit also, so it’s not the computer, and it happens on latest win 10 and win 11.

Cannot even get it to work with one monitor, tried all 3 ports individually.

Clearly Microsoft changed something in the op sys, since this worked fine with several computers.

Is there a firmware update possible for this dock? It is now unusable.


Hello Greg,

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

There is no firmware update for the dock at this time, nor should one be needed. Since this is happening on more than one computer, it may indicate a hardware issue with the dock, or possibly the USB-C to USB-C cable itself.

Speaking of cable, can you say if you’re still using our original cable provided with the dock? I ask because if using a third party C cable it can cause issues with dock stability, etc.

If you are using our provided cable we may need to replace the dock under warranty for you to see if that may help with this particular behavior with the dock on both of your computers.

It could also be possible that the dock drivers on the two systems are out of date if you haven’t used the dock in some time with them. Before issuing a replacement you may wish to try performing a full clean install of the DisplayLink drivers on the systems via the below instructions:

Let’s perform a full clean install of the required DisplayLink drivers with the latest version to see if that helps. Here’s how:

  1. Disconnect the dock from the system and please remove the power cable from the dock so it turns off completely. Please keep it disconnected until the last step.

  2. Download, extract and run the DisplayLink cleaner tool, found here → and ensure it displays “Cleaning Complete” when done (video walk-through if you need it →

  3. Once the Cleaner has been run, reboot (even if not prompted to)

  4. Now download and install the 10.2 M4 DisplayLink software, found here →

  5. Reattach the power cable to the dock first. Once the dock is powered on, reconnect it to your system which will trigger the final portion of the installation. If the device is not detected, please reboot the system.

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

After experiencing the issue on 2 different computers with different monitors and different type C cables I had updated the displaylink software already before posting.
After the update the version is 10.2.7042.0

so I executed steps repeated the steps 1-4, and displaylink version is same 10.2.7042.0

behavior is the same, runs ok for about 10 minutes, then starts continuous cycle of connecting and disconnecting monitors.

Thank you very much for the additional information, the video of the issue, and for trying those steps.

Since this is still happening on two computers regardless of the drivers or USB-C cables tested then this could be an issue with the dock itself or perhaps the power adapter isn’t stable anymore to successfully power the dock under load.

We would be happy to try replacing this dock with a pretested (known-good) unit under warranty. I will contact you directly via email to request some information to proceed forward with that.

Best wishes,

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