Today I decided to do some basic home maintenance. I had a GFCI outlet on the front porch that wasn't working, but had worked fine until recently. Nothing happened when I pressed the test or reset button. I tested the voltage coming to the outlet with my Fluke multimeter, and there is 120V coming to the outlet. I turned off power at the breaker, re-tested to verify there was no power coming to the outlet (there wasn't), and replaced the outlet with a new GFCI outlet. I triple-checked that my wiring to the new outlet was done correctly (black wire to brass, white wire to silver, ground wire to green), and that I connected the wires to "LINE" on the new outlet. Turned power back on at breaker. I re-checked with my multimeter and there IS 120v coming to the new outlet. NOTHING on the new outlet. The test and reset switches do nothing, and the outlet is not providing power when I plug anything in. I'm now out of my depth. What gives?