The 2 lights closet to the driveway entrance from the street were not working when the others are turned on. I found that the wire was severed somewhere between the last working light and the one closet to that light that is not working. Upon further inspection I found that the wire was cut inside the pipe running into the junction box under the light. I repaired wires with an underground splice kit and put all new splices on wires. Lights are now all working properly.