My laser machine also start shaking, finally I get a workaround.

Before switch on laser machine, connect laptop/pc first. Open the cutting tool application (set it to last working configurations)
Then switch-on the laser machine.
As soon as we switch-on laser machine it expect some initial commands and if laptop is not connected, machine will not receive initial commands and start misbehaving or shaking.

Also let me know if this work for others.