Thanks David,
The keyboard is wired - Microsoft ergonomic keyboard 4000. I’ve just tried it plugged directly into the laptop, and so far I have not been able to reproduce the issue that way.
I’ve tried multiple USB ports on the docking station, and regardless of whether it’s plugged into the front or back ports, the issue still occurs.
Due to the way my workstation is set up, I would greatly like to be able to have the keyboard connected to the docking station if at all possible.
thank you very much for any further suggestions.