Shutter speed settings change not working, question on firmware button?

This is the process i go through to get to the speed settings for the shutter, so a few questions: First I open ascom dome control panel

I click connect.

Of course it doesnt let you change values unless its disconnected, so i disconnect and reopen the nexdome ascom server monitoring window, hit setup:

Seems no matter what values i put below, here 600/1500 etc, the speed of the shutter is the same. I had tried lowering these at first to see if it would help with the motor sticking.

Is this the right procedure to lower the values and test?

Also, i know there is a much longer thread here about updating the firmware on the shutter/rotator, but, what does the update firmware button here do? At one point i clicked it when only the rotator was connected, it claimed it updated?

How do i know if i even need to update either? Both came brand new recently?

Thanks in advance