Mine stoped for awhile, so we added some light. It goes on at 3 am and off at 8am. I didn't think it would work, but almost 2 weeks to the day we added the light, they started laying again!
We changed the light Sat to a 250 red bulb for warmth, and I noticed a drop in eggs! My Millies are still working out their egg issues they are younger than the rest, so I won't count their eggs.
We went back to the regular light today, so I hope it helps again. I want to make sure they are warm becuse with the wind chills we were in the - digets!
So try the light on a timer, it's working for us!
Brenda