I can solve most issues with home wiring, but this one stumps me. In the middle of the day the house power flicked off for just a moment. It was long enough that clocks had to be reset. Following that incident the four receptacles in the living room are now dead. The lower one on each receptacle are connected to three way switches at each end of the room. The top one on each is always hot. There is now no power on either upper or lower. The circuit breaker did not pop. Just to make sure I turned it off and then on again. Any ideas?