Why do my outlets not work but the breaker isn't tripped?

When multiple electrical outlets stop working in a room or area but the corresponding circuit breaker at the main electrical panel appears fully engaged in the "On" position, the power loss usually stems from an intermediate interruption. The most frequent cause is a tripped Ground Fault Circuit Interrupter (GFCI) safety receptacle located upstream in a kitchen, bathroom, garage, or utility room that has cut off power to downstream daisy-chained outlets. Another common cause is a loose terminal wire connection inside an outlet box that broke electrical continuity. You can troubleshoot power loss safely using a multimeter. You can verify that your corrective action is successful when locating the upstream GFCI, resetting its button, or securing loose terminal wiring restores full electrical voltage.