Done with build, problems with computer set up

Good morning all.
Done with x carve 1000mm build, downloaded drivers, starting tests, and I get initial X,Y, Z test control movement from keyboard, but nothing else. Directions are just a little outdated, it seems.

The question about manual/ auto spindle? I don’t see where you would set that up. Router just gets plugged into outlet?

The stoppers begin test, but quickly stop. I notice if I manually engage Z stopper, it gives a sound on my laptop as if USB is disconnecting and engaging, Y stopper does not make a sound.

Arduino error, baud rate?

obviously new at this. But time to start carving!

Z probe test doesn’t give a reaction. I will continue to peruse forum, i am sure this is an arduino/ communication thing. Thanks