I replaced my broken gaming mouse with a new one and it doesn't work. The weird thing is that the mouse works when I reboot but only until I login, then the LEDs turn off and the mouse doesn't do anything (as if it is completely disconnected).
My setup is a MacBook Pro (Retina 15-inch late 2013) macOS Sierra.
Best Answer
The first thing I would do is try booting into Safe Mode.
Boot into Safe Mode
Follow these steps to boot your Mac into Safe Mode:
Fully shut down your Mac
Restart your Mac
Let me know how these steps went and we'll go from there.