On mine the keyboard and mouse are separate. Connecting the keyboard does not connect the mouse. You have to connect the little USB wireless connector to an open USB port on your computer for the mouse to connect wirelessly. Intermittent green light on mouse sounds like an unsecured battery insertion. Remove and replace the battery and make sure it clicks into place. Make sure that the on/off switch on the bottom of the mouse is pushed to the left so the green signal is showing.