Thank you for reaching out to us here on the StarTech.com Community.
I know that network issues can require a lot of persistence to isolate, particularly when there is still some level of function.
You have a fairly significant number of these docking stations so it may be best for our support team to contact you directly. Would it be okay to start a case and email you directly at the address you used to sign up for the community page?
To answer your question, I have checked the support documentation for the USB3DOCKH2DP and there are no outstanding firmware updates.