Thank you so much for reaching out to us, I am sorry that you have been running into this issue as of late, but I would be happy to assist!
Based on the description of the issue, and the individual port that is having issues, I think taking a look at the log files from out PlugDebug application is a good first step. When you have a moment, could you visit www.plugable.com/support/plugdebug and download and run the application, and then attach the .zip file that is outputted to an email, and then send it to firstname.lastname@example.org. If you could, please put “Ticket no 191107” as the subject line.
Also, does the issue still occur if you put the system into airplane mode, and then utilize just the Ethernet port on the USB-C docking station?
Thank you for your patience,
Product Owner & Technical Support