Hi,
I'm having the same issue seemingly at random with my client when going out of sleep mode on my laptop.
It is indeed connected to a docking station, into which my usb dongle is plugged.
I also noticed that the dongle is detected as 3 different devices by the Windows Device Manager.
If that is any help, here are a few infos on my system.
Dell Latitude 5591
Windows 10 Pro v.1809
Hope that'll help,
Best regards